If I may again ... give a tip ... at least to most people who arent ParadogsGamer
You need to restart until you get e Dip adviser (seriously they could make it so you always start with 1 star dip adviser this would save soooo much time).
> Hire the adviser
> RM Byz, guarantee Circasia and Georgia.
> Next month - ally Byz, start increasing relations with Circasia and Georgia
> A couple of months later (didnt count them) RM C&G
> Next month ally them
> Start claiming on Crimea
It should be fast enough for Crimea NOT to attack you. Most of the times Crimea and GH start fighting before Crimea allies Ottomans.
DoW Crimea and call C&G. If you're lucky Georgia is not going to be dogpiled by hordes until this point.
Annex Crimea, increase autority, core it all. You'll need to waste ~60 mil points on harsh a month or two after the coring is done.
I managed to annex Crimea with 4 infantry units while they were allied to Ottomans (for some reason they just didnt move their transport ships to destroy me)
Outcome - the year is 1456. Allied to both Poland and Muscovy and C&G (my next targets

)
I assume now that I control all of Crimea Poland wont go all Domineering on me ... again. Cored all of Crimea