Thank you for asking. I can understand the your concern. Let me tell you, the size you have mentioned is very much within a normal range. There should not be a concern about the length of penis being small or insufficient. Regarding you next issue of skin covering penis, I need to know if there is any difficulty faced in retracting the foreskin backwards. If the foreskin is very tight, if it is not able to get retracted completely, you must show it to a local doctor. It may be problematic in future.
Next Steps
Kindly show yourself to a local doctor for the foreskin issue.
Health Tips
Nothing major to worry.