If you want to do something crazy or something that many would call a mistake, you can go ahead and do it, but only if it's your choice, your decision, your idea.
If you want to make mistakes make sure that you can say at the end that yes, you've made them , all by yourself, but you learned something from it , not " Why the heck did I listen to him/her ? " .
Turn them into lessons, not regrets.