Character Speed (wpm): 20
Effective Speed (wpm): 2
Group length: 9
At lot of people do exactly this sort of thing. .
It's MOST important to keep make progress - else you will give up in a few weeks.
Slow morse is fine if that's all you are going to manage,
see 6:50 min into this:-
. . . but probably you will speed up as a result of practice and practise.
(Some of the) People who managed to get up to up to 25wpm in a couple of weeks or some similar performance will advise you that you are wasting time learning twice - once at a slow speed with the wrong timings and then again faster with the correct timings,
more people give up due to lack of progress than turn into fast operators - so you have to choose which advice to follow yourself
If you are aged over (say) 30 years then you might find things proceed a bit slower - but that doesn't take individual abilities into account either.
My advise FWIW is:-
Listen to LOTS of good quality morse without writing it all down.
Try to learn decode in your head instead of writing it all down ( - eventually you will probably just hear the letters/words rather than the morse )
Don't spend all your time testing your speed.
Don't type as you listen unless you are ALREADY a fast touch typist
- else you will learn morse->keyboard instead of morse->meaning and you WILL have to start again
Good luck. Let us know how you get on . ..