When I get bored with FM I play a different game. Or read a book, go for a run, etc. etc...
Apologies for being facetious but it should be up there with all the equally good suggestions about taking over a different team, dropping down a few leagues, etc
. Whether it's a few hours or a few weeks I always come back to FM eventually.
Sorry for the thread hijack OP, I don't have anything helpful to say other than - how long have you waited? Is it possible the youth intake can be moved forward a day or two if it falls on a weekend or national holiday? Like the end of the transfer window?