Looks like you are at the same place I was when I found UU+ and this forum.
General advice trying to do a chord melody arrangement on your own is great learning..
Do give UU+ a try. It it needs more patience and dedication than Yousician but is more rewarding and deeper in its content.
Depends what your goals are. UU+ looks good for all around technique, developing skills and contemporary song work. James Hill’s Ukulele Way is nice for understanding and creating chord melody playing.