One piece of advice is be brave and try things out in your interactions with real humans. People will generally be empathetic and patient if you pick your moments to try to talk, but you need to practice with real humans. For example when ordering your daily coffee or whatever, if the place isn't too busy ask the barista how their day is. Listen to what they say. If they ask you how you're doing, prep something short to say ahead of time (like "I'm doing fine thanks"). Then in private practice saying what the barista said to you. Make sure you understand it. If you like it, wait for an opportunity when someone asks you how you're doing and try out the thing that the barista said. So now you don't just know how to said "I'm doing fine" you how to say "Pretty darn awesome" or whatever. Then the next day try a quick conversation with someone else.
