“Mam 18 years and serious problems. Of 2 I suffer from spine ailments for years. I recently discovered, that I have phimosis. I have been in trouble for several months. Apart from that, Girls stopped interested in me. It all started after an unsuccessful, the first attempt in my life with a girlfriend. I don't know, what to do with yourself?”
It's hard for me to say, or spine ailments, which you write about, are related to erection problems. This must be determined by the doctor. As for the phimosis, to, substantially, It may be a hindrance for intercourse. This is a trivial ailment, which you should remove as soon as possible outpatient. It's best to go to a urologist surgeon. However, the fact, that the first intercourse with the girl failed, does not indicate any sexual disorder.
I am the most concerned about the lack of interest in the girls. That's why I encourage you to visit a sexologist. Maybe, You will need psychotherapy.