ShangPie are you near a good yarn shop? They sometimes have jumperalongs like this one in Brighton (now ended, but YAK does them regularly):
yarnandknitting.com/product/jumperalong/
Even if they don't, a good shop should guide you through the yarn and pattern choices (crucial) and support you while you knit, even if on knit nights.
The wonderful Tribe Yarns is no longer in Richmond but they do online knit nights and provide advice, and recommend a knitting instructor:
www.tribeyarns.com/collections/events-classes
Milli the owner is moving the business to Scotland and will be selling online only I understand. But she gives a very personal service so maybe can help with the choices once she's settled.
She sells glorious yarn, at lots of differing prices. I still have to knit some qiviut - musk ox - yarn that I got there. It's softer and warmer than cashmere. I have enough for a small scarf.
Have a rummage on Ravelry for pattern ideas, but be aware that lots of new patterns now are for knitting on circular needles often in one piece. I prefer using straight needles, and sewing up pieces for better fit, so prefer British designers like Kim Hargreaves who still use that technique. Fruity Knitting is an excellent series of podcasts: I recommend starting from its first episode and going from there. There are some dodgy Ravelry enthusiasms for example for speckled and/or painted yarns - they look pretty in the hank, at knitting shows, but IMHO look dreadful knitted up.