Hi everyone, I need some advice on how to continue this run.

Current tech is 5-6-7, renascence embraced. No idea groups selected, Corruption due to debasing.
Force limit 58 with 7 state slot open. Just allied the ottomans but i could revert. Vassal Georgia, Iraq and OPM Khiva.
I've never played as a horde and what I've done until now was razing everything that wasn't a center of trade or a good goods produced province.
Was razing like this a good decision or should i raze everything?
Which kind of idea groups do you take as a horde?
Is it better to go conversion or humanism?
Where should i expand next as a priority? Should i kill the ottomans asap?
At what point horses will be useless and i should just go full infantry with cannons, if ever?
When would razing become ineffective? Should i reform my government then? Will this prevent the great khan achievement or the 200 province one?
Should i culture shift to Manchu in the future for banners?
As I pretty much killed Muscovy, should i take exploration or expansion to colonize the steppe, as nobody would?
Any other tips are appreciated.
Current tech is 5-6-7, renascence embraced. No idea groups selected, Corruption due to debasing.
Force limit 58 with 7 state slot open. Just allied the ottomans but i could revert. Vassal Georgia, Iraq and OPM Khiva.
I've never played as a horde and what I've done until now was razing everything that wasn't a center of trade or a good goods produced province.
Was razing like this a good decision or should i raze everything?
Which kind of idea groups do you take as a horde?
Is it better to go conversion or humanism?
Where should i expand next as a priority? Should i kill the ottomans asap?
At what point horses will be useless and i should just go full infantry with cannons, if ever?
When would razing become ineffective? Should i reform my government then? Will this prevent the great khan achievement or the 200 province one?
Should i culture shift to Manchu in the future for banners?
As I pretty much killed Muscovy, should i take exploration or expansion to colonize the steppe, as nobody would?
Any other tips are appreciated.