I didn't know you could sand the paint, won't that remove the paint? I will try sanding it a bit before applying the next coat.
For higher quality finishes you should lightly sand with a ~240 grit between coats (light pressure, 1-3 passes) and a final finish with a 400+ sandpaper (same as above, but not as vital to mind the amount you are sanding the higher the grit)
Good news is, I did do that. After the old screws came out I drilled with a 1/8 bit before putting in the 3". Drill bit wasn't long enough to cover the entire length of the screw, but hopefully it helped.
There's a lot of specifics at play, but generally you would want to drill close to the tip length if you are concerned about cracking/strength and frequently technique plays as much a part as what you are doing, but the fact that you did it and you know they are there should give you peace of mind, which is the entire reason to replace the screws.
Folks,
I need some advice, I have a piece of furniture where the paint/varnish is falling off (Deep ebony color) because I spilled a bunch of alcohol on it. What's a good finish and paint that isn't highly toxic for someone who rarely does woodwork.
The color is staining my hands if they get sweaty on them and I rather not give myself cancer right now.
A pretty iron law of Finish is durable = toxic to use, but as long as you are doing things outside where the chemicals can disperse, aren't getting your nose inches away to breath it in deeply, and not doing it a lot, it shouldn't be a concern. And once a polyurethane (yellows, but slightly, unless you are doing double digit coats, or coating white paint) or any other useful coating fully cures it's inert. The toxic chemicals are toxic partially because they off gas.
Any good beginner projects/books you guys would reccomend? Any particular things like specific joints to reccomend trying out? I'm interested in picking up some basic carpentry and wood turning skills.
Try to find a project that would either make your life easier/more beautiful and dive in. Woodworking is tricky and doing something that you want to do will give you experience you enjoy, which is more important and useful to start than the "right" project, and the experience gained will make it easier for you to understand any reading you do about the more technical parts and advancing techniques. Woodworking is largely not about doing things perfectly. The tiny details you mess up and learn from are as much a part of what will make some projects irreplaceable as the beauty/utility that results.