I used to get bored in many LDs that I either couldn’t achieve something planned that was very very hard or even spending much time trying to remember what I had planned for the next LD.
I’ve learned that you can use the mnemonics to remind yourself about your plan. The plan itself can be used to remind you about LDing. This means you can do MILD repeating mantras related to what you should do in a LD.
Another technique I created is available here.
(sorry about self promotion, I don’t do it much, so I think I’m forgiven… hoho)