Can anxiety cause erection issues and premature ejaculation?

Hello doctor,

I am a 27-year-old male. I started my first sexual relationship some months before, and I found that I had some sexual problems. In my first intercourse, I could not maintain an erection. The second time, I maintained an erection, but premature ejaculation occurred after 15 seconds of penetration. If I get an erection during intercourse, I put on a condom that time, and the penis goes normal. I was a bit scared and anxious about the situation at the time of intercourse. I did not get the sexual desire. And during my last intercourse, premature ejaculation occurred. I had lots of pain in my muscles and back, dizziness, and sleepiness for around 5 to 7 hours. When I do masturbation, I can maintain my ejaculation for about 5 to 8 minutes. Is that a problem in my body, or does it happens due to my anxiety?

Kindly help.

Thank you.