Hello Gmc, And Need Tips/help

Hello everyone, I'm new to GMC and a beginner on the guitar. Im in Canada in the GTA, and eager to master the guitar. Hoping GMC will fast-track my learning and there's soo many talented people on here.

A little about myself:
--Currently im in 2nd year Mechanical Engineering at RYE University and trying to cram in some guitar learning on top of a rigorous workload .
--I'm a Huge fan of Ozzy, his guitarists and their guitar style ( Metal/Rock )
--I think everyone has something to offer, so I appreciate any tips/help/input.


I didnt want to post this on the GMC class forum just yet, as it is my first post.... With that aside, I've been having some problems that I can't workout.

This should be simple, but for whatever reason I can't get it. It's a problem with 'twanging' a string or two, like when you dont have your finger at the end of the fret or not pushing down hard enough. It's not on basic notes, but when i 'hop' from one string to another adjacent string. When lifting my finger off there's a very slight twang that I'm sure i could get rid of.
Also, there's these chords that i get twangs on as well. Two songs that have these right at the beginning are 'Talk Dirty To Me' by Poison, and 'Smooth Criminal' by Alien Ant Farm. In 'Talk Dirty To Me' the last sequence of the intro; sliding all fingers over 1 fret gets alot of twanging, because i can't get my ring finger to the end of the fret bar (because pinky is blocking) and i tried using just 2 fingers instead of 3, but then i still get twangs because i can't hold down the next string enough.

Any tips/advice would be greatly appreciated, and Sorry this is so long

I dont Blame you for not reading all of it haha.