Commercially prepared merino roving is great for spinning.
Before you try spinning it the next time, 'fluff it up'. It will draft better.
Definitely make yourself something out of your first yarns! Perhaps a smallish bag to hold spinning or knitting items.
Over twisted yarns are 'Energized' and will create a wonderful item. Thick & Thin yarns are 'Art Yarn' and equally beautiful.
Have you watched Abbey Franquemont's video
? Are your trying to draft and spin all at the same time? Try drafting your fiber, then putting a whole lot of twist in a short length of fiber, park the spindle then move your hand up the fiber to allow the twist to go up into the roving. When the twist is exhausted, wind it on, then repeat.