Take it one step at a time. Learn about the ways other autistic people stim , and try out a few stims to see if they interest you. Carry fidget toys or wearing jewelry that's fun to play with. Donate your itchy or uncomfortable clothes. Look at people's mouths instead of forcing eye contact. Instead of bottling up stress, say "I'm stressed" and explain why. Express your thoughts, as long as it's kind and logical to do so. Enjoy your routines and special interests without apologizing for them. Learn to laugh and say "I know I'm quirky!" Worry less about what other people think, and focus more on how to keep yourself healthy, happy and comfortable. It's a process, but you can start today.