I have insecurities about going out into society to better myself and my life- whats the answer ?

Let go of your past and remind yourself that the world is filled with good intentions. You may be reading too far into things and taking people the wrong way. Give others some time get to know you. Let people think what they want to think regardless of whether its good or bad. The only thing that matters is what you think of yourself. If you think of yourself in a bad light, then others will too and vice versa in a good light. Face new things with complete confidence. Even if you don't "feel" confident just act the part and it will build with time. You're getting out to make a better life, don't let little things push you back down. Stop rehearsing things in your head and let things go. You can't change your past, but you can change your future. Hope all goes well for you. (: