Preparing for the competition

Hi, I can't say I'm experienced swimmer. I used to swim at school for 4 years then I had a break for 20 years. A year ago I restored my trainings (now I'm 35). So now in about 2 weeks I'm going to participate in competitions (just a small club masters event). I would like to know if I should add smth to my trainings or to remove smth. I'm going to swim 2 distances - 50m freestyle and 50m breaststroke. I would appreciate any help. :) I'm training 3 times a week, swimming for 1 hour in a 50m pool. Here are my 3 last trainings just to give an idea where am I: 1) Warm up: 1х200m IM. Rest: 10sec /200m Core: 4x100m Fly 3+3+3. Rest: 10sec/100m 4x100m Freestyle 6+6+6. Rest: 8sec/100m 8x50m Freestyle. @ 60sec. 6x50m Freestyle kickboard. All out. Rest: 20sec/50m 1x400m Breaststroke kickboard. Rest: 10sec/400m 1x200m Freestyle. Rest: 8sec 4x50m Breaststroke Pull with a pull buoy. Rest: 20 sec/50m Warm down: 2х50m Breaststroke. 2x50m Freestyle. Total: 2700m 2)Warm up: 1х200m Breaststroke. Rest: 8sec /200m 4х50m Free. Catch up drill. Rest: 8sec/50m Core: 3x (100m Fly. fins/100m Back easy) Rest: 10sec /50m5х200m Free. fins. paddles. Rest: 15sec /100m 1x300m Fly. kickboard. fins. Rest: 8sec / 300m 1х300m Free. kickboard. fins. Rest: 8sec / 300m 4x50m Free. kickboard. fins. @ 1:00 Warm down: 1х200m Back. Total: 3000m 3)Warm up: 2х100m ***. Rest: 8sec /100m 2х200m IM. Rest: 10sec / 200m Core: 6 x(100m Free/100m Back). Rest: 10sec/ 100m 10x50m Free. 50/50 All out/Easy Rest: 30sec / 50m 10х50m ***. 50/50 All out/Easy Rest: 30sec / 50m Warm down: 2х100m Back. Total: 3000m