I may have found someone

I have met a beautiful intelegent funny girl who seems to have mutial feelings for me. People have told me to watch out for her and one person even told me that she won't be there for me emotioinaly. As I have gotten to know her she is starting to show me her emotional side and I her in some cases. I am only 22 so I am keeping it at arms length and as my mom says "play it cool" haha, I love my mom. I just know that I can get emotionaly invested way too quickly in relationships and I end up hurting myself. I just hope I can keep walking this tight rope of making sure she knows how I feel but not falling too hard because I know how that can end and I don't want to end up there.