i really dont know whats going on with me... i had sex 5 -6 times in my life and everything was ok, i didnt have sex for a year maybe less and last night everything was fine until the time a was going to go in her, i dont know why and how but my dick just shrank it got small like nothing was happening and even if i tried it wouldnt come up again... so i just tried to play with her lil bit (linking,kissing her everywhere) hopefully it comes up again but nothing..after 5 10 min of just giving her pleasure i tried again to make it happend, it did so we start having sex
few min later we just stopped for not even 1 min to put the condom on and it started getting smaller again and as much as i tried to bring it up... it wouldnt

i tried to think of somthing, masturbate lil bit, blow job but nothing it just gone ''dead''.. i feel sooo bad and not good enought so pls help me give me some advise or something

she feels its her fault and i dont want that either... im really down i think about it and how could this happen.