Why do I keep getting filled at bad prices when I trade?

Bad fills at the start are almost always about haste and unfamiliar tools, not a lack of talent. Your hands are still learning the platform while your mind is watching the price. That split is where mistakes live. Slow down where you can. Use limit orders so you name your price instead of chasing it. Trade smaller while you learn, because small size keeps a clumsy fill from becoming a painful one. The goal right now is clean habits, not big wins. One small step: before each order, say out loud the price you want and the most you will accept. Naming it first keeps you from grabbing whatever the screen happens to offer.