What should i do?

Also there are few ways which, I think, could help:
1. Playing bullet with better players, as you can check your openings there. They will answer you with memorized lines, and you can check these lines and analyse. So you will see more opening variations for shorter time.
2. Lichess's opening training. http://en.lichess.org/training/opening/480
Probably, you already know about this.
3. Trying to develop universal strategy in opening. Watching fast development of pieces, fight for the center, king's safety, stable pawn structure, fight against opponent's plans. I think there are some books about it. And you, probably, also know about it.
4. Not playing many different openings, but concentrate on few, so you will be able to remember one opening perfectly. And then you can move to another.
5. Looking in google "How to learn chess openings". You can also find some articles there. :)

Hi Chesstroll_Ingot, from #2 to #5 are very good for me, especially #5 which I am going to look up. Thank You so much.

@mastermogli #1

Years ago I have spend loads of time on chess study, as well as playing.
Sometimes it happens that I confuse positions or get surprised by the opponent move. Not only in openings, but also middlegame and endgame.

Then I think it is a matter of using the time well, and with a balanced time usage in mind, go on and make the best of it.

Also, I wonder what the goal in chess is per person.
For myself, 1 wonderful game can make up for many "boring" games.
That makes results less important.
A beautiful chess games can give a lot of joy, but also analysing chess games can be beautiful.
One of the things in otb chess that I enjoyed very much was the mutual post-mortem analysis after a game.
Even with a grumpy opponent it is often a wonderful exchange of the mental exercise that chess can be.

Focus on the nice and positive things, and work on the weak things in one's chess, and try not to focus on the not so nice things, and the drive will slowly be a positive one.

#1. Hi Mastermogli, thank you for asking that question which Chesstroll_Ingot gave some very good advices which benefit me also. I have the same problems playing with AI only.

Hi, CHTAN, you are welcome. :)

Chesstroll_Ingot #11 achji #13 Much obliged!