Volume for 15-20 hours a week

Hey guys,

So I am just posting a question for some of you coaches out there who train your full time athletes in the 15 hour/week and up range.
I do about that much but sometimes it starts to feel like mental burnout and was wondering how you adjust your training schedules for athletes to compensate for that.
My typical day has 3-4 different training blocks:
90 minutes tumbling
30 minutes pommel
30 minutes rings
30 minutes handbalancing and stretching

I feel like I need to repeat each day with the same blocks and same components in each block to continue to see progress in each area, but it starts to feel like way too much and is mentally and physically draining.
Do you guys mix it up quite a bit to prevent mental fatigue, or do you use a systematic approach that doesn't change?  Deload weeks for skill work?  Different disciplines on different days?

Look forward to your feedback!

Personally if you do not have 10-12+ years of solid training you are going to overtrain yourself then injury.

Mt best kid can hold 5 times a week 4 hours a day, he stay on the same apparatus no more then 20 minutes. appratus must be circled around with a lot of important on pre-acrobatic and trampoline work (something that you are doing).

and for the rest? non conditioning? how do you support the apparatus? how much time on special specific preparation and how much on special?

too many factors and too less informations.

Thanks for the reply.
Tumbling include basic punching and movement drills and then tumbling passes.
Pommel work includes both floor and pommel, with a mix of flare, airtrack, and handstand work.
Rings include your basic static strength work, bent arm, straight arm, handstand, planche, etc. plus work on the aerial straps.
Handstand work includes timed intervals of 1 arm practice, supported 1 arm practice, etc. and then stretching is shoulder mobility, all splits, back mobility, hip mobility.
The time can really add up quick!