i dont think so. I never tried joining early but all you need is to know alittle magic and since your doing destruction you should be all set.
I need potions and poisons that mainly need Chaurus Eggs. while getting the Torchbug in a Jar i opened a journal and found a quest. Well i walked into this lighthouse with 0 and walked out with a total of 312 Chaurus Eggs and im sure i missed some.
There's actually a Nirnroot farm East of Ivarsted it's called Sarethi Farm I think. You get like 7 nirnroots from it. Also there are two nirnroots at Sleeping Tree Camp and two along the creek there at Whiterun.