Didn't play AoE since over 10 years but bought it on the recent sale. Watched some youtube played some matches how do i git gud?

Hello everyone. As the title explained i recently picked up AoE2 including expansions as i used to play it back when it came out as a kid.

Currently i am back and playing mainly Black Forest and Arabia RM 3v3 and 4v4. My elo is hovering ~1600-1620 so not very far off the starting point (many games are decided by which teammate randomly dc's anyways or decided to roleplay lol).

So where do i start to improve? I've watched some civ overviews by "Spirit of the Law" on youtube to get a general feel on what each civ does. I used to play the Persians, Japanese and Teuts back then which is still like (teuts are painfully slow tho and only having scouts feelsbad). I checked out some new civs and the Slavs also seem very promising (i feel like i prefer strong special units).

I watched one or two older tutorials (~2-4 years old) on how to roughly set up my game (q vills, 2 houses, 7 on sheep, 3-5 on wood, 3 on berries, at some point 2 new vills lure boars to tc as sheep run out (so total of 9 on that). Then it gets a bit random but i usually send one to wall in black forest guarded by the scout and with loom. Sometimes i hunt deer if they are conviniently placed sometimes i send my hunting vills to build a mill and take the 3 bonus boars if well placed. Overall i aim to rank up to feudal with ~20-25 vills, 2 on gold 5-8 on wood and the rest on food.

I try to get to the castleage fast to drop another towncenter and get up to 40-50+ pop quickly and then build some units tho despite no truce most games i played so far didn't have heavy combat till late castleage unless i started a rush on arabia.

Lategame i usually struggle with siege stuff. Often enemies pick stuff like Turks with high range bombards guarded by cannoneers or spam onagers and i am not too sure on what to do except try to build my own. Also how many unit production buildings are sufficient for such a game roughly?

So where do i go from here? Do i focus a specific civ? Any recommendations on what to do? How do i get out of the starting elo bracket quickly?

Thanks in advance.