I already tried other kinds of ties but nothing seems to accomplish what I want to do.
I tried taut-line hitch, didn't work… the only way to tighten it is to pull the tied part and if apply force at the middle of the rope then It will just simply loosen..
Best Answer
There are several variants of hitches that allow tightening after they are tied. The most common is the taut-line hitch.
Wikipedia [citing more authoritative sources]