First thing: why? Why do you feel the need that you need someone in your life to validate you and your worth? If nobody's told you how strong, beautiful, and courageous you are, then I am. You don't need a man or woman to make you feel strong. It's okay to feel weak sometimes - we're human and it's apart of us.
Even Superman and Superwoman need time to themselves to be human, just for a few hours.
You don't need someone to make you feel beautiful or handsome. I want you to stand up and go to the closest mirror and admire your smile; admire your freckles; admire your wrinkles; admire you because you are so much more than you think.
You don't need to prove yourself to anybody. You have so much bravery inside of you; it'll just take some time to find it and that's okay. Rome wasn't built in a day, so you won't magically wake up and say, "I'm the baddest thing alive." It'll take time and careful analysis of your life and past. Finding that sense of self-worth should be a painfully enjoyable journey because in the end when you walk around with the biggest brightest smile on your face, you'll know that you've done well and you've achieved happiness.
Don't rely on someone to take care of you, no matter how trustworthy they are. Circumstances change and so do people; don't be afraid to call for help, but make sure that when you are asking for help, do not (and I repeat, DO NOT) let anyone try to make a deal with you. Asking for help is NOT asking for a favor, so make sure people don't expect anything in return. If people get mad at you, then you'll know they didn't have your best intentions at heart.
You can find this happiness in a relationship, but I would prefer to find it within myself because I couldn't put myself in a position of loving someone else while on a journey of learning to love myself. Be comfortable with yourself. Learn to be independent. Avoid ignorance. Welcome compassion.
You don't need anybody to validate you. You are smart in your own way. You'll succeed at your own pace. You'll glow differently when you realize your worth. You'll be at peace with someone knowing that you have self-confidence in yourself. You'll find love when you love yourself.