>Promotional stuff
I'm still wrapping my head around it myself but you can do a 'free' promotion for 5 days (you can decide if they're all together or spread out or whatever) in a 3-month period, because your KDP contract per book lasts 3 months. For this time period, your book is free, and can be downloaded by people with eReaders. There's also Kindle Countdown which I haven't tried yet, but basically it's at a discount for a while. Let's take my book 'Living amongst the Dead: Dark Days' for example, it's at $2.99 for Kindle. Let's say I put it on discount from Apr 26-27, which I think I'm going to end up doing. On the first day, Apr 26, I can set it down to $0.99. Then, on the 27th, it goes up to $1.99, and then after the 26th when the promotion ends it's back up to $2.99.
Anyways, free books is good. It gets people reading your stuff, perhaps if they like it they tell friends, or make a blog post about it, or mention it in a Youtube video, or whatever. It gets people trying your stuff out, and that's good, even though neither you nor Amazon gets money from it.
>$50
That's for all my books in total, but most of the money is from LatD and LatD:DD which are easily my 'best-selling' books. It's only in March, for all books combined.
>Full-time job or University?
Sadly neither; in a bit of a hard spot in life right now, but things are improving. I should have myself a little job in the next 2-3 weeks I hope, knock on wood. Just something to pay the bills. I'm going all-in with this writing thing, and the way things are improving and at the rate I'm writing, I honestly think I can become a full-time writer within a year or two. I'm not doing it for the money though, I'm doing it because I love it. I mean even though I made practically NO money between December-February I still wrote and worked on books, and even in October-November I earned barely any money. In truth I haven't yet received a cent, though I should have had $4.17 sent to my account recently for the months of Oct/Nov/Dec. Then at the end of June I should get the $50-55 or so that I made in Jan/Feb/Mar. I expect to make decent money through Apr/May/Jun so by the time my payment comes for those months at the end of September I should end up with theoretically over $180 for those 3 months. Doesn't sound like much, but it's steady progress, and I like progress.
>Living amongst the Dead
Yeah, that's my first book. Then "When her No means Yes" is sort of an erotica I tried out, "Firearm Valhalla" is an action novelette, "Another One Please, to Dull the Pain" which I mentioned is a drama, and then recently "Living amongst the Dead: Dark Days". I'm now working on a third LatD book, and it's about 30-40% complete now I figure. Around 29,000 words? Today is actually the first day in a LONG time that I neither wrote nor edited. Pretty crazy. I did a lot of editing for LatD:DD because I wrote it back in August/September RIGHT after the first book. Grammar issues.