Taking pictures

I like to take pictures. I take pictures of my friends, nature and of myself. Can I say "I didn't take a picture of you". Or I should say "I did't take a pic"?(First one is better) When I was yonger I took a lot's of selfies, but now I don't like to, not because I look worse than I used to. I just think that it looks stupid, when people take a picture of themselves everywhere. If I made mistakes please correct me.

Nice job, the errors you have made can be difficult.

Taking pictures

I like to take pictures. I take pictures of myself, my friends and of nature. Can I say "I didn't take a picture of you"; or should I say "I didn't take a pic."? When I was younger I took lots of selfies but now I don't like to, not because I look worse, I just think that it looks stupid when people take pictures of themselves everywhere. If I made any mistakes please correct them.

("I didn't take a picture of you." - is the better option.)