Keep the start simple, don't pressure
First open an account, then open the 777bd App and take a quick look at the menu, then understand the interface with a small top-up via bKash or Nagad; newcomers don't need to understand everything at once, basics can be grasped in 10 minutes
In Dhaka, many try for the first time during late hours; even with slow internet, if the page is light, the work can continue.
Start with the guide