Any advice on how to play in time to fast death/thrash beats? I can see myself playing to midtempo thrash beats, but I seem to have difficulty feeling and playing along to for example 220 bpm skank beats with eighth noted beats. I feel the only way that I can tell if I am still in time with 220 bpm skank beats is if the beginning of the riff that I'm playing always lands on the cymbal crash that usually starts a riff off.

How do I reduce the amount of mistakes I make when I play songs? Do I need to be one of those guitar players who practice 8 hours everyday? Are there certain drills I need to practice to make my playing more perfect?

Do I need to practice fine tuning and perfecting the way my picking hand executes certain riffs? For example, do I need to do repetitive drills that fine tune and perfect the way I play galloping riffs, tremolo picked riffs, palm muted down picked riffs, alternate picked riffs....etc until I am able to play those types of riffs perfectly?

I don't have any experience playing in a band and I may be jamming with people soon! So I really want to improve fast!

For everyone's reference I play Slayer Reign in Blood and Suffocation Effigy of the Forgotten inspired material. I have attached two songs attached to this thread https://www.ultimate-guitar.com/forum/showthread.php?t=1665263 for your reference.
Keep it to the one thread, the other one you have is perfectly fine.

R.I.P. My Signature. Lost to us in the great Signature Massacre of 2014.

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