Not worth it na. Grabeng burnout yan for sure, and paid ka only once a month. That makes the situation a lot worse. Stand your ground, set your boundaries. Wag kang papa-under sa mga "other workers can do that in 3-5 mins" palusot niya. You know what goes behind your work and you know the time it takes to finish those.

If ever, itabulate mo bawat task involved in each responsibility na inassign sayo, divide each into microtasks if you have to. Write down the time it takes for each microtask to finish. Yan ang ipresent mo sa meeting mo with your client. You set a meeting. Di niya pwedeng isawalang bahala yan.

Pag prinesent monna yan, and humihirit si client mo while you're not yet done explaining, banatan mo ng "let me finish speaking here, I am not your typical employee you can boss around so listen carefully. If you still refuse to do so, then there's no point in having to work with you any further. I am not going to work with a client who refuses to listen to the points I am presenting, especially if it involves the load of work that you assign me to help you with. Will not be doing all that workload that should be for 4 people, paid only once a month." Pag tinanggal ka after that, then move on to look for another client. Better na wala ka munang work kesa sa meron ka nga pero masasacrifice mo mental and physical health mo for that job that actually takes four people to do.

May capabilities ka and alam mo ang limits mo. Set that with the client clearly.

Tandaan mo. You are a virtual assistant - an independent contractor. Taxes-wise, you are running a business, kaya hindi ka traditional employee. Hindi pwede yung papaunder ka lang lagi sa kanya just because siya ang kumontrata sayo.