Bartel

but sometimes the most valuable thing you can learn when posting a hand is different than what you set out to learn.

Absolutely agree
An unexpected lesson is worth double

Thanks Richard, your intervention makes me see things from another perspective and directs me in the right way to think. Anyway, come back to the hand.
Folding pre is clearly a good idea :) Wanting to give some examples:
Strong 45: Ah4h56, 4h5Kh8 ( x/r range)
Medium 45: 4589, 4567 ( lead range)
Weak 45: 45TJ, 45QK ( x/c range )
I would place my specific hand between Medium 45 and Weak 45 but maybe it should be Medium 45 considering that otherwise the Weak hands would be too much and we don't want to x/c too often.
Does such a thing make sense?
I haven't understand at all the concept of blocking IP calls , can you make an example ?

Thanks Phil !
In this scenario , I think oppo's range is something like AJ9T , JAKQ , JT98 , JQK7 against which we have 50% equity about but sometimes we will find ( rarely ) 55xx , 77xx , JJxx against which we have less than 20% equity I suppose.
The pot justifies the call or I'm considering a too narrow range ?
Could we say that in general in this situation with SPR = 7 the call is almost always good or is it too much oppo dependent?

Because in both hands I posted, thinking I had the best hand on the flop, I tried to end all in, but I think I strongly overestimated my hands.
In this hand, for example, should I just call the flop and then re-evaluate the turn?
On the other hand would I have to bet on the flop about 40-50% of the pot?