I'd say that you don't have to abandon those techniques. Just make sure you make a 30 minute (at least) break between practicing different techniques. After some time you'll see which one gives you more and you'll stick with it.
There are many techniques out there, but you don't have to practice them all (mission impossible 
. My suggestion is: Pick one that yields the best results (for you) and stick with it.
Spending some time on finding "the right" technique is justified, but don't waste your time trying everything you hear of. There is always something different. Do one technique regularly and go from there. Otherwise, you'll "try out" everything but DO nothing, thus no results can be achieved. Do not try. Do it!
