yoyo, if you feel uncomfortable when you go to that store—which you have said you do, then take a deep breath and speak to your parents. unless there are other things that you have not told us here , the normal reaction from parents would be to have their child sit down and talk about what the problem is and see what can be done. be open and honest, if they know you use the computer , you could even show them some of these posts if you feel it would help.
do it as soon as possible.