Beginner Street Fighter 6 tips from a rock-bottom tier player

Use pokes (long range attacks) to create distance between you and your opponent
Use quick attacks for frame advantage and hit confirm opportunities
Do most of your head-to-head fighting on the ground; only jump when you see a potential opening or if your character takes advantage of being in the air
Spend your (special) meter, as much of it as possible before the final round is over
Mind your drive gauge; only (intentionally) burn out if it can win you the round or at least give you a significant edge
Try not to mash buttons, especially while being attacked (this negates any blocking)
Start off with your character’s unique target combos (these are categorised as “unique moves” within the command list)