Can I be titled by the end of 2025


Opening theory is kind of useless, it’s better to focus on calculation
you will need to play in a lot of FIDE rated, over the board tourneys, and win most of those games.
That will get your rating higher, but you will also need to play against titled player, and do well, to eventually get a 'norm'- of which you will need 3.
Depending on where you live it can be months between rated tournaments.
So the end of 2025 seems very, very optimistic.