Step 1: Recognize that it's also your fault and that you, like everyone else, have flaws.
Step 2: Work on your appearance. There's no way around it - being physically fit and taking care of your appearance is important.
Step 3: Spend some time improving your confidence, working on your personality and learning how to better communicate with people.
Step 4: Make it known that you're available and approach the people you're interest in and demonstrate your interest.