Merino usually isn't recommended for beginners, because it's slippery and the staple length is a bit shorter than coarser wools. That said, some teachers start with merino because they figure if you can master it, then you won't have any problem with other wools.
I had only spun a few things when I bought a merino blend -- I think because it had some mohair in it that made it easier to spin. After that I moved on to 100% merino and it took a bit of getting used to, but it wasn't super challenging. (Like the 100% tencel I attempted this morning :wall: )
I say go for it, if it makes you :!!!: then put it aside for a while and move on to something else!