I've had good luck doing overloads with WSB type training.
Like for a supp after my ME lift, I would do some sets and reps with my last recorded max. Or as an ME lift, I'll do reverse band squats. I use light bands and I find I can use about 10% more than I can for a 1RM.
It really builds confidence so when you do walk up to a weight for a new 1RM, you know that you've held that weight before and then you can go full in and smash it without hesitation.
The key is to use it sparingly.
It's called the "Future Method" in WSB terms. Since you're doing weights you'll lift in the future now.