I’ve just found a great resource for beginning to paint at thoughtco.com. Have a look at this article by Marion Boddy-Evans. If you’ve got a question, you’re very very likely to find the answer here. (be aware that the host site also covers different hobbies such as dangerous sports and gambling!)
What’s the difference between oils, acrylics or watercolours?
How can I buy materials at the start which aren’t hideously expensive but not cheap and cheerless so they give disappointing results?
When I go into a shop, I’m baffled by having to choose between “student” and “artist” quality paints – what’s the difference?
How do I mix paints?
Which brushes should I buy?
What can I paint on?
Where can I get ideas of what subject to paint as a beginner?
Any clues for how to layout (“compose”) a picture so that it looks well?
How do I hang my finished painting?