The power of bad experiences

I have in front of me the possibility of something in which to really sink my teeth. Something which would require a great deal of commitment, drive, passion and vision - but two experiences such as this in the past are hindering my current view.

I've fully committed to something twice in my life - and twice have walked away broken and hurt and doubting myself and doubting God.

Yet, this situation is completely different to either of the ones I refer to above. Even though, as in the past there's the similarities of being excited about the possibilities and also seeing a huge purpose in giving it a huge go.

So, how does one learn, yet not be held back from a completely different experience by past endeavors gone wrong? Not to be too scared to give something else a try and to put all your energies into it knowing how its affected you in the past when you've done the same and it's all hit the fan.

I don't have the answer. But I do know that I need to look through new lenses at the future and try to learn from the experiences without being influenced by them.

To actually grow.