No, nothing wrong with you at all.
My system is a variant of this:
View: https://www.youtube.com/watch?v=-XUFVrl0UT4
I use two boot laces which I always carry with me.
Push the tyre down into the well, keeping it there with the boot lace - spiral it round the tyre - moving forward. No need to tie the bootlace, it will hold in place if you just loop it under itself at the beginning and end of the operation. I then leave a bit of a gap, still forcing/keeping the tyre forced into the well, using the second bootlace if needed.
Works every time for me.
And I still won't be buying anything more from Conti
- as I said I need to check if, after several day's attempts I can reproduce my feat with the Conti, even with a "too-small" tube.
I use standard cheap park tyre levers - the best in my view - some I know see them as too stubby/not clever enough, but I like them - tough - never had one bend let alone break - no need for clever tyre levers - just folk that can make proper tyres - and boot laces.