This. Getting to know people who you value as friends outside of your normal working environment is the first step to forming really deep friendships. Most of my friends come from work/university/online (you'd be surprised how many deep online friendships I've made that have become real-life friendships)- there's no need to actively go out and pursue friends, just make an effort to talk to people you really like in your free time and see how it goes.

On the other hand, it is good to go out (and sometimes force yourself to go out, it's very easy to isolate) and actively pursue your interests which will most likely lead to you meeting more like-minded people.

Finally, if you want to tell someone you have any DX, I've found the best time is when I'm relaxed with a friend after a day of doing something and we're just chatting about our lives and personal things. Just see how the conversation is going, and if you feel like it's appropriate then casually mention it. I find, if you don't make a big deal out of it, then the person you're talking to will not think it's so much of a big deal either. I've only ever had 1 bad reaction- and that person is well out of my life now!

Hugs, and thinking of you <3