Oh don't feel that way, weather its big or small there's so much to do to please a women, be smart, you have fingers and a mouth too you could incorporate....
Hang in there bud I know the feeling. The struggle is real. As long as you don't become bitter towards women I think your on the right track and if any girl laughs at your junk forget her anyway she obviously doesn't know how to satisfy a man if her first instinct is to make you feel ashamed.
How small is small?