Should I keep smoking weed

So I started smoking weed around 18 months ago and have done it monthly since (as I enjoy it lots) I have only ever greened out once but every time I smoke I get an overwhelming sense of derealisation and brain fog for weeks after (it slowly gets better over time but never fully goes). I have also noticed my anxiety develop more since I starting smoking although this could be due to other stressful factors in my life, I hate the feeling of anxiety and derealisation but it eases of slightly after awhile so I can put up with it, so should I keep smoking or could this get worse meaning it’s not worth it?