Schedules are a necessary part of game development. From planning team-related work to individual tasks, it's important to keep on top of things and to stay organized.  My process is generally to use the team scheduling system as the macro of my tasks so that team members are aware of what I'm working on and its status and to use my personal scheduling system as the micro of the tasks where I can plan the order of how I should complete the task and by when.

Personally, I like to be very active in a team kanban board, updating the backlog and my status on my current tasks. In a current project, my team decided to use a Trello board to organize ourselves. This worked well at the beginning but quickly dissolved when people stopped updating it. As a result, lots of time was wasted on tasks that we no longer needed or that were already done. This slowed down development quite a bit and was very frustrating as someone who was making good use of the tool. We're now re-implementing this system because without it , things get messy and ideas get lost in note documents or discord messages quickly. 

For scheduling personal work, I also use a Kanban board to organize myself as well as a calendar. Using the same system as the team schedule is just more convenient and working in one Kanban board serves as a helpful reminder to update the other one.