I would say that your sporadic job schedule is very suitable for doing grab. RM270 a week with RM15/hour can be easily achieved(assuming you are in KV). If you can do 6 hours a day at hours below, RM1k a week is also possible.

7am-9am (2hours)
12am-2pm (2hours)
5pm-7pm (2hours)

Regarding to whether it is still worth doing or not is really depending on one's definition, though definitely the income per hour has dropped a lot since Grab lowered and lowered the incentives. One thing to note though, you should make sure your other income can pay for your new car instalments if grab suddenly ban you from driving.

BTW, if you still haven't signed up with Grab, please do it ASAP as after 14-Aug, new drivers will be charged 25% commission.

where you driving?

Sibu is memang 25%, https://www.grab.com/my/blog/driver/grabcar...structure-sibu/

Sibu is memang 25%, https://www.grab.com/my/blog/driver/grabcar...structure-sibu/