I got a ganglion inside my left arm/wrist which hurts when laid preasure on (like taking push-ups). Should I remove it? Any after effects? -nor

See hand surgeon. This depends on the associated pathology such as a bone spur. I would discuss with a hand surgeon to evaluate the need for surgery or other less invasive options.
If it bothers you. Ganglion cysts are benign; if they aren't bothering you, best to just leave it alone. If it's bothering but you don't want surgery, your dr may be able to inject it with cortisone, which should get it to shrink & quit bothering you. If that doesn't work, an orthopedic surgeon can remove it.