If you know that you can pay attention for 5 minutes easily, then make sure all your next actions can be done quickly, ideally 5-10 minutes but no more than 20. Then they will be less likely to repel you.
I've done this, as I often will put off long tasks because I get bored easily and after 40 minutes want to change activity, so I've found that breaking tasks down into smaller chunks makes them less repulsive.
At first I found having lots of projects and many next actions daunting, but when the NA are smaller and I get through more in a day, this also means I have more variety in my day and get bored less, and maintain focus better.
I have a really poor memory too, and since using OneNote my life has changed for the better. Every thought goes in there, and whenever I've done a NA I'll put some note in there about what I did, so I can easily check on what I've done and what still needs to be done, so switching really regularly doesn't matter.