One piece of advice on this blog applies to everything else on it: pick a single search technique, learn it properly, and only then start on another, because trying to absorb the whole field at once guarantees you learn none of it. Ronnie Bestor says that plainly and it is the most sensible sentence in a very large library.
The range is remarkable and mostly unconnected. Hair loss. Golf. Photography. Interior design. Insurance. Organic gardening. Coupons. Juicing. Buying a first home. Each gets the same measured how-to treatment.
The marketing half covers blogging, article writing, email, mobile and affiliate work, and the blogging posts are the strongest, including a good argument for introducing yourself properly before you publish anything else.
Stress and depression get a post that is gentler than the rest of the tone.
Search for your problem, and take the one technique at a time rule with you whatever the problem turns out to be.