TO YOU:
Do something that you like. Find a job that interests you and not a job that ties you down. So what if the pay is reasonably okay for a newbie, but the working hours are so un-fixed which can range from 9-8pm, 9-10pm or 12am or even 1am? I hear you complaining about clients everyday, how you're so sick of doing what you're doing, how sleepy you are going to work and dreading it everyday, and how little support you're getting from your colleagues. To me, there is really no point in continuing with this anymore but you refused to listen. Well, nothing wrong for having your own stand, but if that is the case, you should stop being unhappy with your job because this is the pathway you are choosing, and since you made a choice, stick to it and bear with it without complaints.
There are other jobs out there which do not require much skills but yet pay equally well with fixed working hours. Why not give those a try? At least you will have a life, and you won't have to go back to work on weekends and deal with unexpected clients or feel so stressed every night even after work. Isn't life much better this way? You won't have to envy the others anymore, or envy me because I'm still schooling and I've no such troubles. You'll have more freedom as well and you can have more time for soccer, basketball, running, gym, no? Think about it.
To be honest, sometime I am very pissed when you complain to me abt your unreasonable clients and how tired you are from work. Why? It's not because I'm not interested in your life, but it's because I've told you numerous times to quit this job but you assured me that things will get better in time. But did it? I think (and I know you think too) that they've gotten worse instead, and none of us will know when things will pick up. And as I've said earlier, if you really think you're fine with this job and it meets your needs, then make do without complaints.
Okay, your life aside, now mine. Haven't you thought of how much less time we'll have together if you work from morning till late nights and sometimes even on weekends too? You claim that I've no time for you because of school and dance, but that is only true when I'm busy with exams, and dance is only like twice a week? Other than that, you're the one neglecting me. Imagine me waking up to you already working, and sleeping at a time that you're still working, plus my smses to you and yours to mine is like a 5:1 ratio, which is really saddening sometimes. I look forward to my semester breaks because I can spend more time with you but it's really hard when you knock off from work so late and it seems just like any ordinary schoolday to me. And after 2-3 weeks, I'm back in school again and it seems like I haven't enjoyed much at all.
My point is, I don't want you to make the wrong choice. Don't work just for the pay because it's really not worth it. Do something that you enjoy, that you will look forward to everyday. Even if it's not your interest, do something that is worth your time and the money you're receiving. I've told you before, if you stick to the current job, think abt it, do you think that you will still be doing it 5 years down the road? If not, quit it now and get another job that will last you for at least the next 10 years. No point wasting these 5 years doing something that you will not continue anymore, and then start looking for other jobs which may not even accept you by the time you're 30.
You're an adult. Think for yourself. Weigh the pros and cons; apparently the cons for your job now is far more than the benefits you're having. Long working hours + stress + lack of support + low pay = job dissatisfaction, poor performance, lack of motivation, no commitment to the company.
Okay, that's all I'm gonna say. The decision is still up to you.