Then I guess it depends whether you'd regret more not trying it out or potentially wasting that money?
Is there a possibility to experiment without too much at stake? All dependent again on what you consider to be "too much".
I think there's a lot of reassurance peer wise plus the crazy hormones during youth which promotes exploration. From thereon forth though, it becomes quite a lonely journey.
As long as you continue to try though, I don't think it's ever considered a loss.