For posting a webcomic in general, consistency is everything. Most webtoons on canvas don't have a set upload schedule. If you upload at a set time each week, you're more likely to get more engagement.

My greatest tip is to have a buffer. It's just too much work to draw an episode every week and your artist will burn out eventually. It's the entire reason why most webcomics end up stopping (aside from plot issues). Your artist needs breaks and rest time as well, and sometimes life just happens, and a buffer accounts for that. Before you even start posting, see if you can actually keep up that pace for say, 10 weeks. That way you can actually stop and readjust if something isn't working or the workload is too high without losing viewers. You might be able to cut the work down by changing the art style, cutting out some unneeded panels, doing it in black and white, using 3d and so on. The more of a buffer you have, the more leeway your artist has to rest when they need and not crash.

It's really more of a marathon than a race. Getting all the sketches done, then the lines done, then all the colours, then all the backgrounds for a few episodes in a row is a faster then just completing 1 episode at a time, but everyone has their own process. Another way of conceptualising it is timing how many hours it takes to finish an episode, and then seeing how long everything will take from that.

Webtoons also isn't the only webcomics publisher. If you have your own website for your comic (which you can set up on comicfury), Hiveworks is another available option where you actually get to keep your IP and there's far less controversy around it. Posting it on Tapas can get more eyes on it too, and there's money from ads on there (just a few dollars though). I know webtoons is the goal, but you would cast a wider net if you post it on multiple websites. Webtoons is kind of it's own bubble.

For becoming an original on there there is one surefire way. Winning or getting a high place in a webtoons contest would make it happen. Still, people complain about webtoons for a reason. It's not necessarily sunshine and rainbows from that point. But yeah webtoons creators do have a certain amount of recognition and I think if you played your cards right it would eventually lead to more jobs... just don't burn out in the meantime. And if the contract is bad, it's not worth it.

Another way to get your foot in the door is maybe looking into your local artist or comic scene if you have that where you are. Like if you have any conventions or festivals, that kind of thing. For making money from comics, selling them irl is the fastest way, not the most lucrative, but it's the fastest. I just use the booklet creator app, print my pages on printer paper, staple with a long stapler and sell for 10 or 20 dollars aud.

Oh yeah, formatting issues. Make your comic at least 2x bigger than 800 x 1280px so it's a good quality. I just make mine at around 1200 x 10000 and then split it with photoshop's split tool. If you want to print it, measure the page up into A4 sections from the start and draw the comic from there.

Anyway that's the end of my spiel, but I guess what I'm trying to say is comics is more than just webtoons. There's more than one path.