Re: where do I learn better synthesis?
If you're into glitch-hop/neuro stuff and don't mind to spend a few $/€, Bassgorilla has solid tutorials by guys like Frequent and Skope who very much know what they're doing when it comes to sound design. Unless specified otherwise, most of the producers there use Ableton. Digital Labz also sells masterclasses that will likely help you in your journey.
Like someone suggested, starting with a subtractive synth is probably a good idea. Get a popular one, like Massive, Sylenth1 or Serum, they are popular for a reason and you'll more easily find tutorials and presets online to help you understand how things are done. Really get to know the different sections of a subtractive synth : oscs, modulators (enveloppes and lfos mainly), filters and FXs. Get some presets you like, turn things on & off to find out how each module contributes to the final sound. Make deductions, take notes and practice. Always make sure you spend more time practicing than searching the interwebz.