Ahma, I seem to remember you mentioning in one of your early posts that you have a coach. Or at least that there is a coach at your club and that he/she had made some encouraging comments about your technique. Is that correct, or am I mixing up your story with someone else's? (Quite possible!)
If you do have a coach, or access to a coach, I really think you should take his/her advice on your equipment selection.
It's all good fun trying different equipment and debating the pros and cons of different blades/rubbers with others on this forum. But if you are serious about wanting to become a competitive player (and, again, I think I remember you saying something along those lines) then you need to stick with a suitable setup for a long time - and a local coach (or experienced player) is best placed to advise you on that.
For reference, when I was your age I knew players - all in their teens - who were competing at national level (some of whom went on to compete internationally) and none of them changed rubbers. Ever. Some used Mark V, some Sriver, others Coppa - but for about 10 years (ie. as long as I knew them) none of them ever changed to a different rubber. In terms of blades, most upgraded from the Stiga Allround Classic to something faster after about 3 or 4 years, but then kept the same blade and never changed it again.
So, if TT is just a bit of fun for you then carry on experimenting and enjoy it as long as your budget allows! But if you're serious about reaching a high level then you'll need a different approach.
Your current setup, I think, is a Xiom Offensive S with Tibhar EL-S both sides. Is that correct? If so, I assure you that setup can take you all the way to (at least) regional/national junior elite.
Hope that helps.