Hmmm.. The 1e4 and 1d4 lines are the most common (and theoretically sound) for white, and generally those are the ones you will need to respond to as black. Most people recommend starting out learning these "main" lines, and then learning how to complicate them afterwards.
I'm new as well, but I've had decent success with playing against AI just above my level, and analyzing my games. We don't get all the features without upgrading accounts, but looking at our mistakes and rethinking them goes a long way! I've been getting away with playing borgs and pterodactyls and other garbage, but would probably be a stronger player with main lines.
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Nov 15, 2020
0
#3
https://www.chess.com/blog/KeSetoKaiba/opening-principles-again
This resource has helped a lot of my chess.com friends with openings 
Basically, this method (of utilizing "opening principles") makes it easier to get a solid position without opening memorization required!
Nov 15, 2020
0
#4
Hi. Welcome to the site. I hope you will have a great time improving your chess.
First of all, here are some general advices on how to improve your game:
https://www.chess.com/blog/nklristic/the-beginners-tale-first-steps-to-chess-improvement
You will see a bit about opening principles, among other important things, there.
A bit more detailed article about the opening is here:
https://www.chess.com/blog/nklristic/surviving-the-opening-first-steps-to-chess-improvement
It covers , more or less, all you need to know about the opening phase of the game as a beginner.
hey where you from? :)