I bought some Falkland roving from
Black Cat Fibres and it is excellent for a beginner on the wheel, 100g actually goes a long way and once fluffed up a bit Falkland is a joy to spin, it has a wonderfully long staple and isn't as super-fine (read: sheds stuff everywhere until you're used to it) as merino.
By "fluffed up" what I mean is you break off a length of about 6-12 inches and then gently pull it sideways until you get a wide web of fibre, the falkland expands about 4 to 5 times, this way when you spin it's all loose and easier to control. If it's hard to draft then try taking the piece and gently pulling it lengthways a small section at a time (usually a section is the length of the staple) and that will loosen the fibres for you.
When I started I was told to just sit and treadle until I could do something else at the same time. No fibre, just keep the wheel going steadily in one direction while talking to someone/watching a film/knitting something plain, that way when you come to drafting your foot already knows what to do and you have more "spare brain power" to dedicate to the drafting.
Don't worry if it comes out all different thicknesses down the length, it's normal! As you already know from spindle-spinning, practice makes perfect.
Also, try applying some bike lubricant to the bearings, any part where metal rubs on wood, the oil you put on the wood will lubricate that and the bike lubricant sees to the metal.
That's all the help I've been given and worked out for myself
