Good.
One concrete suggestion:
Develop the following habit. Whenever you are confronted with an unpleasant task X, there is a moment where your mind starts searching for other, more pleasant things to do. This is the moment where you have to implant the habit of asking - not yourself, but an imaginary judge:
"If I defer task X, will it become easier later?".
For some tasks, this may be true (e.g. taking out the trash is easier when you're heading outside for work anyway). For most, it's not. Use this question as an arbiter and follow its verdict.
And when you completed an annoying task, rejoice in the feeling of relief and accomplishment (maybe not the task itself was hard, but overcoming the unpleasantry was), and remind yourself of this feeling the next time. Rinse and repeat.
One more abstract suggestion:
You have probably heard it a thousand times from your teachers, parents etc. - "You could accomplish so MUCH, if just you would STRIVE for it..." You believe it yourself, talking about your "full capacity".
But it's not true. Or at least it's the wrong perspective, allowing for wishful thinking.
The current state you are in - that is your full capacity. More you do not know, because more you have never tried. Or, more drastically: More you do not have, because more you have never proved.
Maybe that's even the reason you are not improving your chore-handling abilities after all (if you allow me this unfounded speculation): You are afraid of hitting your limit (a.k.a. failing) to soon, realizing that you're not that capable after all.
Luckily, there is no such thing as a fixed, inate capacity. Your capacity will definitely improve when you start taking yourself seriously and stop generously sparing yourself the chores. Prove it to yourself what you really can do.
It always risky to advise a person you never met, so take this with a grain of salt. Hopefully it's useful to you.