Feeling so low and fed up

Just need to moan

My littlenone is 8 months and I've had a hellos few days.

He's totally fine in the day but come night a devil comes out the last week.

He goes down ok then around 2 hours later he's up all hell breaks loose finally setlles back down and then sleeps for a few hours no problem.

However thay time inbetween is tears from him and me! Then when I think he's back to sleep i lay him down in his cot and bam awake and all he'll brekas loose

I dont pick him up straight away or go in straight away im at bresking point of whats going on the naps are a struggle at moment too again doesnt sleep for long when jn cot