>>528480338
>I think I've been doing both at the same time...
That's generally not a good idea. An aggro deck's gameplan is focused on the early game with a highly aggressive offense. They play a lot of low cost cards and want to do as much damage to the opponent's face so that they can snipe the opponent for the win with a storm follower or direct damage spell in the mid/lategame.
A ramp deck's gameplan focuses on the late game. Their opening turns are more focused on stalling for time and defending. They want a lot of very expensive cards in their deck. Their ramp spells let them start playing those big cards a few turns earlier than the opponent, and they generally are more willing to trade big dudes blow for blow in the late game since their deck contains more big dudes than most opponents.
Basically aggro goes all out with a desperate offense in the hopes that they can win before running out of steam, and ramp desperately tries to avoid dying until it can play its big dudes.