May I ask what your needs are? I personally use a paper calendar/diary for appointments, deadlines, locations, items to take with me, birthdays etc., and a Panda Planner to plan my week and day in more detail. Next to that I have a digital calendar to remind me of birthdays and the app todoist.
It’s a lot, but I’ve got a setup that works for me now. What’s important is that you find something that works for you and keep at it (it’s hard and I still slip up). Make whatever you choose to use the first thing you see in the morning and the last thing you see before going to bed etc. A bullet journal is highly customizable and If you identify your planner needs it may very well be the tool for you! Just don’t look on pinterest 🙂