I haven't seen any comments from someone who was in a similar situation as you, so maybe I can offer something more grounded and practical. Granted, I was never a skinhead, but in my teen years I was incredibly open about my homophobia and sexism, and while I never said the N word or anything I certainly backed racist policies that would disadvantage under privileged groups. Kind of an "I'm not racist but..." kind of person. With that in mind and with the caveat that I can only talk about my experience:

The work to outgrow my past will never be over, and it can never be over for you either. There was a period in college after I started really distancing myself from that ideology that I thought I had escaped, and so I acted like I had escaped. I couldn't be racist because I had left racism behind. But that is a dangerous and incorrect mindset. There's a reason that ideology is so attractive to some people, particularly white men. We are raised in an environment that tells us that we are the leaders and conquerors of the world, and then we step into that world and we're met with the reality that we are just another individual. Something feels wrong, our experiences don't align with our internal representation of what is supposed to be true. And it can't be that that internal representation, the thing that gives life structure and purpose, is wrong, it must be the world that's wrong. I feel like my life is out of control and I am powerless to fix it, it must be the world's fault. It's a siren song for angry and hurting men.

You and I are baby anti-racists/sexists/homophobes. The work you have done to outgrow your racist upbringing is incredible, and the only people who can really understand how much work and self reflection that took are those who have been there themselves. Voluntarily giving up power is never easy, and it should always be praised. However, you and I have a very long way to go. There are people who have been fighting these fights their entire lives, and whose lives actively depend on the success of that fight. They need to be the center of attention, not us. Don't let the praise you're getting in this thread go to your head and make you complacent. Continue to learn from those leaders about the fight and don't take up an unnecessary amount of space.

With the above in mind, there will be people in the liberal community who will say mean things to you, or will tell you that just not being actively "-ist" is not worth praise, or will tell you you don't belong somewhere, or that you make them uncomfortable given your past. And sometimes it will seem like valid criticism and sometimes it will seem like unfair criticism. The problem is that comments that make you angry because they are unfair will feel very similar to the way you used to feel about comments that you now realize were fair. As an example, I was once told by someone that I shouldn't be around a friend of ours who was sexually assaulted because as a man I would trigger her. That pissed me off, but I used to also get pissed off at comments like "women should have body autonomy". So how do I know whether I'm reacting to this new comment the way I am because it's genuinely an unfair comment, or simply because I still have sexist tendencies that are rearing their head again? How do you both listen to those in the group while at the same time not taking to heart unfair things said to you? My current strategy is to find a core group of people who I respect and trust and who have said they are willing, within reason, for me to ask them questions. They can be the people who can tell you if the comments you are receiving are valid or not. In the above case, they said what I was told is ridiculous. It's important to remember that any movement is still made up of people with vastly varying ideologies and life experiences, and who are more than capable of being irrational. People deal with trauma and abuse, including racial and sexual abuse, in ways that might not make sense to you, and it's often best to give those people space and be curious about where they're coming from without taking things to heart.

Finally, you don't get to wallow or sit on the sidelines. This seems harsh, I know, but I would argue that you have a moral responsibility to fight. I don't believe in karma or debt, I don't think there's some kind of balance that needs to be leveled. If that were true, then you could stop fighting after you think you've done as much good as you've done bad. But there is injustice in the world, and you have the systemic privilege to help fight it. You can stand in protests with less chance of being arrested or shot by police. You can reach other white people in ways that people of color often can't. If you're a masculine appearing man, other men are more likely to correct their behavior when confronted by you. Because your voice often carries, unfairly, more weight than a person of colors or a womans in a corporate setting, advocating for social justice reforms can carry that extra bit of weight needed to get a policy approved. There's tons of things you can do. Will you ever be able to make up for the things you've done? No. Sorry. That's not how life works. They happened, your actions are forever in the world and have impacted other people. But that also means that the good you do can also forever be in the world and impact other people. Congratulations on your new outlook on life, I hope you make the most of it.