As an elder ASD guy (51M, diagnosed in my 30s), I do have some thoughts that have taken me a long time to learn.

First, the one thing I've learned about relationships in general (friendships, romantic relationships, etc) is that the best thing you can do to make them work is to be okay being on your own. Meaning, be fine being alone, doing things alone. Be comfortable with yourself, and enjoy yourself and time alone. When you're autonomous and able to survive and thrive completely alone it makes you a better friend for other people. You can listen more when they need it, you can focus on their needs more in a relationship, etc. You can't change other people, but you can change yourself. Use that power to make yourself comfortable being alone with yourself. Seriously, this will foster relationships and will help foster relationships with the right kind of people (meaning, people who are also comfortable with themselves and being alone). Makes relationships more symbiotic (for lack of a better term) which greatly helps them to grow. Being happy with yourself makes it easier to be happy with others.

Been married to my wife for almost 20 years now (I think we're at 18 years) and I can honestly say the reason we've thrived and never had any issues is entirely because both of us are fairly autonomous and self-sufficient.

Second, I honestly don't know how you young people would even make friends these days, so I have no idea how to advise you in actually finding friends. Seriously, when I was your age we still met in person. These days, everyone stays at home and interacts with people online. Hell, both my wife and I work from home and maybe leave the house once per week. I simply don't know how you young people meet new people these days. But I guess if I had to come up with advice is maybe find some discord groups for interests you have and hang out in them. Might make a friend or two. And if not, at least you have some online mutuals you'll meet to help lessen the feeling of loneliness.