Erm, you mean multitasking as in playing more tables at a time, right? You get used to it with time... it might be easier to start getting used to playing multiple tables on normal tables than on zoom though, as the game is slower there in general.
I think that you might not be aware of the variance, etc... You are talking about turning $5 into $30 in a day, that proves nothing - anyone can win that. A good sample size to determine whether you're a winning player or not would be about 100k hands, and even then you can't be completely sure. Reading some
psychology articles could help you here.
I suggest that you also read up on some articles on bankroll management (there are plenty of them in our
strategy section).
I would suggest two more things:
1. Read articles, watch videos, attend live coachings, post hands in our hand evaluation sections. There are so many free resources on this site that you can take advantage of, use them! Joining a study group or finding a poker buddy will be very beneficial too (check the poker strategy sections of the forums).
2. Pokerstars has a nice feature that you can use, it's under Requests -> Responsible gaming -> Restrict table limits. Once you read up on the Bankroll management articles, you can easily restrict the limits that you are able to play and therefore make sure that you obey it

.
Best of luck at the tables, and feel free to ask some more questions!
-SF