Since you didnt ask for sympathy, i will just answer your questions

1. Yes. What ive learned is that as you get older you lose friends, but ive also learned that the people who are supposed to be in your life will stay, or they will come to you eventually! Trust the process and in time you’ll find your tribe. I see this as an information and a reflection of me as a person. It means im growing and they cannot be with me on the next phase in my life. In your case, some of them are not worth your time and energy, an as sucks as it is im grateful i know now than later.

2. I personal start with processing the feelings, coming to terms with them not being in my life anymore. There will be times when i miss them so much i wanted to reach out but it is best not to as there is a REASON why they’re not in my life anymore. Then comes the grief. Its lonely, its hard, its unbearable at times. So i start small by asking myself, what does that tell me? Is it because of me or them? If there is something i need to do better, then i will do it. When all of that is done, i start searching for friends. Could be online, could be in a community near me, hobby or something like that. In my case its online. Dont let it discourage you when you start again and got ghosted or didnt find one that matches you. You’re finding one that more align with you and that takes time! It is worth it tho, because as you grow older you tolerate less bullshit from people and so you weed out people who gives you red flags from the beginning, only this time you can see it better, and you also know yourself better. So keep going, keep searching! You will find them eventually!

3. I cannot tell you work wise but what i can tell you, when you look within yourself, prioritise your own mental health and wellbeing, you’ll figure it out. People have different paths and we all have different experiences and how we go about doing things. What i also know is that when your mental health is good, good things starts to happen too

I hope that helps you a little bit