Checking for clarity…so you want to do a trade at a CC, and then work until younare between 30 and 40 and go to a smaller LAC where you think you will fit in better?
If you have this…you need to address this FIRST.
Ask for a leave of absence from Purdue…don’t withdraw. Ask if you will still have your full tuition scholarship if you take a leave. If so…take that leave…and work on your social anxiety issues. do this FIRST…before you make any specific college or career changes.