Use a rubber band at the base, I hope it would help you

Use some lubricant. Then it will slip much better.

5 inches isn't abnormally small. In your photos your cock looks fine and a condom shouldn't be too loose. Obviously, avoid the larger size condoms. There are some smaller diameter condoms that are made in Japan (look for the Crown brand or any that are described as "snug fit"). Use plenty of lubrication on the outside but don't put any on the inside.

Lagana chor do

Don't use it

i dont know