Welcome to HCM
We understand your concerns
I went through your description. I suggest you not to worry much. If you are not circumcised, then you might feel it difficult to retract the foreskin. I think you should have the surgery. It is safe and painless. Do it and you should feel the difference. The area inside the foreskin is supposed to be tender and should feel irritating on touching. Normal and should vanish after experience. You will not have any problem in your sexual life as you have 5 inches. Your libido also should be good. Weakness might be in your thoughts.
You might need psychotherapy
and other cognitive behavioral therapies
. I can help you through telephone. Please do contact me through customer care of www.healthcaremagic.com for a telephonic consultation session.
Hope this answers your query. Available for further clarifications.