I have been sort of like that and have learned to wait a bit, do every possible thing I can on my own and not get anyone else involved until it is time to. There's nothing wrong with wanting it 200% and taking Hebrew lessons, etc. but I would have explored as far as I could on my own before I called a rabbi or got into anything formal like that.

If you know approximately where the change comes, then just put a moratorium on doing anything "official" until you have passed that test of being interested through that date.

You can't really be 200% when you begin because you don't know anything yet. Nothing is going to always interesting/what you want to do/be 100% of the time either, even "yourself" :-)

The slower you can train yourself to go, for the longer period of time, the more enjoyable whatever interests you might be. That's how one gets to know friends, lovers, occupations, interests, etc.