Looking ahead will come in time, (I practice when I warm up, just do some slow relaxed solves, maybe have a met on).
PLL is a good start. The wiki has good PLLs for you to choose from.
Cross, look at badmephesto's videos, those helped me a lot.
then OLL, which is same as PLL for where to learn.
and then with multi slotting:
First learn tricky cases that are F2L (assuming you only know intuitive)
Then if and only if you start using ZZ, start learning only cases with edges oriented correctly, but as of my knowledge there are no good places for multi-slotting algs. Nobody has really learned them.