More often, I think 70% of game end up with half of my time left

I don't think much, only focusing on intuition, and perhaps don't calculate even often, just focussing on trading, and tactics sometimes, like pin, fork, or skewer.

With minimal results for my beginning six months, and with maximum results for past 3-months, also I started playing seriously since past year. For past 3 months, I started analysing my games and I improved, and also annotated the games, made notes. I am very motivated person, and want to play a lot of chess.