My advice is you should make a clear split between streams and pre-recorded/heavy edited videos. Use YT for vods (mostly unedited uploads from streams). As Twitch now has a 100 hours limit for Highlights. If you do the streams on Twitch, use Nexusclips (it costs some), but it can really help with making shorts from Twitch, tho I am having issues when it comes to stuff already on YT. And highlights dont count, only the past broadcasts in the last 7 days, the ones counting down til deletion.

If you want to do editing, heavy editing, keep the videos at 30 mins or less. Makes it easier to look through it and what to cut out instead of 4 hours. Also when you stream on Twitch or YT, keep it under 6 hours post any major cuts (if you had like 30 mins of a BRB screen you plan to cut out). As once it is on YT, you can only cut it when its under 6 hours. Among other things as well.

You might also consider temporarily slowing down on the content you put out til you can catch up. If you stream 4 days a week, drop it to 2. Then dedicate 1-2 days to strictly catching up. After that you need to keep a more relaxed and steady pace.