Low libido, feeling nervous. Be cured?

I am 28 year old male. Before 7 days got married . But in general I am having low sexual desire. When at night we are attempting for sex I feel extremely nervous So I can't maintain hard erection for long time. She is a virgin therefore I'm anxious about her pain. Penetration has not happened till now after 5 to 6 trials due to her tight Is genitals and my slightly left bent penis.(photos I can share )Is  this due to low T levels or what ? How can it be cured ? N:B : before 1 month I had neck sprain and nerve pain so had medications like Nuphlam Th,Meganeuron,Ubicar, this situation has improved and the pain is almost gone, medication cycle is almost complete. But due to this condition I developed some anxiety, fear ,stress of marriage.