How to attack on feudal?

This is the very first game I've ever played in my life, and came back to it after quite a while.

By this time, I'm only able to win 1vs1 against AI frequently in Hard (not Hardest. I mean the 2nd tier of the rank, not sure of its name in English) when I play Goths in Black Forest. I try to boom as Goths. It takes me a while to reach Imperial, but as soon as I do I can sustain 4-5 barracks pumping Elite Huskarls towards enemy Town Centers and that is usually enough to win AI on Hard for me, if I wall correctly. I also had some luck trushing, even as goths (I know is far from optimal).

But I really want to try another strategies. I have been a few days trying to archer rush, as mayans and ethiopians mainly. I reach feudal just seconds before AI, I start sending archers and that's it; he already has some skirmishers that destroy my plan.

After this, I also tried to do a scout rush; I chose mongols, my favorite civilization all the time, and the same thing happens. I reach feudal shortly before AI, but when I have my first scouts ready and send them off, he already has some archers and a few spearmen that destroy my attack and I lose my advantage.

What's wrong? Am I being too slow? Or perhaps my micro is so bad? I would love to switch from my noobish Goth late game strategy towards something more aggresive. Is there any specific strategy that I should try to improve? I feel I'm so passive while playing and it would be great if I could fix that.