I’ve been in a similar situations a few times. What I’ve discovered is that If you just start doing items randomly 100 a time for example, you’re going to get some 50% correct, exhaust your brain and get those same items back the next day anyway. You’re going to be drained mentally.
The way I do it is basically a mix of the suggstions you’ve been given:
Order all the reviews by srs in a descending order so that I can burn whatever there is to burn, and do some master items too. These are easier after a long period of time since you already have them in your long term memory (things you can burn you should know by heart anyway, in theory at least). You get to clear the pile and feel like you’re advancing.
After doing the easy items (those shouldn’t come back in a few months unless you got them wrong), I would order the items by level using the ultimate reorder script, and go through the levels one by one from lowest to highest. This is kinda like resetting your level, except you don’t have to start from apprentice with most items.
Just keep doing as many reviews as you like. Lower level items are easier anyway. Before you know it, you’ve “only been doing easy items” and you have 100, 200 items left. Those you can just power through if you feel like it, and start doing some lessons again once you have your apprentice amount low enough.