Future happiness holds more value for you personally for whatever reason - this is great! i am happy for you.
an alternative view point which is also sometimes correct is that future happiness holds zero value as you may never get it.
I don't know whats really going on but i basically agree that laziness is not a thing. whether its explained by different weighting of future values or different weighting of the value of doing nothing (also highly rewarding) i think is a moot point.
The advice given by the original comment to me holds true regardless. Also the way it is stated is especially important (as i think anyone who has benefited from such advice would see): step 1: beating yourself up doesn't work, you need a logical argument against that to help your brain adjust, step 2: find a way into doing things without a set end goal in mind, this is to learn the pleasure of doing the thing, not getting to the goal.. that way you are triggering different value / reward calculations in the brain.
Please note i firmly believe there is no one explanation that will work for everyone, you have to factor in their view points and biases while finding the specific language that will fire the right neurons for that person... we are all hear to share perspectives in the hope that they are of value to someone else.