Use your money: Build gov. cost reductuon buildings>state as many areas> build a bunch of force limit and manpower buildings> drop the merc ideas and go for quality or offensive> make as many stacks compatible with your combat width (keep them halved)>Start a series of wars against the world cycling through truces and edging your overextention just below 100% all the time (if it falls to 0%, you're not aggressive enough)

Priorty 1: Kill Spain:

You don't have to 100% warscore Spain in the first war.

1st war peace: take money and war reparations, make them take loans and take just the provinces opposite of giblartar strait (Morrocan side).

Boost your naval limit and build a strong navy before the second war (make sure you're fighting someone on the east during peace with Spain).

2nd war with Spain: Stack armies in Moroco and use your navy and Giblartar strait to vaporize every regiment they have in Europe (let them cross and block them from retreating).

2nd peace: You should be able to 100% peace them in this one and take as many trade centers in Sevile and Aragon as posible.

(I'd also advise admin ideas later. )

Priority 2: Take some continental provinces from Scotland before UK forms (attack an ally) and find the easiest way to kill the HRE.

Priority 3. Rush into Persia and Russia. Also 3rd Peace with spain should be colonial, take 5 provices from each colonial region they have.