Maybe slow down a bit pls Nae, why are you eager to repot it? What purpose would that serve? If you can't say, I'd suggest against it (for now). I can't tell what size pot that is, but they don't need lots of room, certainly not that bit of plant. Also, do you know what mix to use? I'd suggest you read around here under that plant name, there's lots of posts w/ useful info. To start plants often need time more than anything else & w/ that -- detailed observation; let the plants appearance over time indicate what it wants/needs.

I had two or three night bloomers in pots when I lived in Orlando until 5 years ago and have had them in the ground ever since. The first place I put them seemed to get too much sun, so I moved them under a large oak in the back yard. They have grown nicely, but are still not blooming profusely. I found when they were in pots they bloomed more often when a bit pot-bound, so have assumed with no restrictions this will slow down a bit. Time will tell. When they are ready to bloom I call a bunch of friends over for "beer 'n blooms" and hope my timing is right!

I've seen night blooming cereus growing at the base of trees...

Wantonamara, Very nice! My poor plant has not had a very good plant mom. It has been a hot dry summer and the watering wasn't very regular. It had such long arms, that I had it up on a plant support and it kept getting blown over in the wind. I do have several more cuttings now, LOL. It has bloomed several times, but always at night. I hope that the heavy clay pot stops it from falling. I will have to try the fertilizer once a week. I feed my violet with weak strength every time I water, but never thought of doing that for the cereus. (Yes, I know it is E.... O..... I can spell cereus!) I just got it moved into the greenhouse a couple of days ago. I think I will just leave it there next year and try to shade the greenhouse. It is under trees, so that helps.