I have a large guide on my computer answering most, if not all newbie questions. However I’m on my phone and I’m not in my apartment either.
But for now, I recommend good armor (leather touring suit with a motorcycle helmet and corresponding boots and gloves) and a spear for brand new characters.
If you are lucky you could find an NPC with a good weapon or skills to help you out if you can convince them to tag along.
I did it once in one of my numerous lab playthroughs, the NPC had 8 unarmed. By the time I escaped I destroyed everything with my fists of steel.
If you can, get a shopping cart. It’s great because it can store things and if the situation gets hairy, you can just ditch it and come back later.
Keeps your character unencumbered so you can fight and run.