From how I understand your question: just learn to play the way you feel is good table tennis, even if it makes you temporarily worse. If you love the sport, you should feel good doing so more than winning.
You'll progress much faster, have fun and do things you wouldn't achieve in a lifetime by chickening your way to an easy win, again and again, against people you've already played on repeated occasions. Eventually you'll be so clearly above the 1200-1900 range that it won't matter what you do.
Don't focus too much on what you perceive as your style. You don't have a style until you're a master.
Incorporate new things into your game, and realise that you are not entitled to succeed at first. Big deal if you lose against people you've beaten time and time again. Swallow it up, good game and happy day for them.
Of course, if you're maybe more of a recreational and social player at the moment, it is perfectly fine too. To each their own. Maybe my rant doesn't apply then.
ps. On a technical note, what TableTennisTom suggested to you sounds like a good idea for what to do next.