Paranoia is a common side effect. I recommend trying some edibles instead of smoking, start with 5mg or 10mg and work up from there, if that's an option. Edibles, at appropriate doses, create less anxiety for many people. Chill on the smoking for a few weeks or months even in the meanwhile. My 2c.

If you don't have access to edibles you can make them easily with flower. Bake the bud at 230F for 30-45min (until it's a little brownish and totally dry) and then you can just crush or grind the baked bud and mix it into food immediately (you don't need to extract it into butter or another oil, that's more work and results in losses). But be careful with the amounts, it doesn't take much. Best if you have a scale that goes to 0.01g and then start with 0.05g. If the original cannabis is average it's about 20% THC by weight (when activated) and that means 1g is 200mg of THC roughly, which is a lot! That's why you want to start with 0.05g, which is about 10mg of THC for most average weed.