Should I ?

I'm really a rational kind of person
always like to think the possibilities ahead before taking a move
That doesn't sound bad at all
But then, sometimes because of such habit
it caused me to lose a lot of opportunities
never try never know
but if i try I afraid that I don't want to know
if I don't try I will never know
just that I afraid it will ruin everything that goes nicely
That is just me, too logical
I hate that side of me
I always feel like to do whatever feels right
whatever my heart wants me to do, but at the end my brain is the one stopping me from taking further steps
Should I put aside what that make the ME, OR start doing whatever I feel right to do
Follow heart, and not mind for one moment.
If so, will it ruin everything?? I'm scared, I start pondering, and let the future decides for us