Commit to a minimum amount of time to dedicate every day. People generally recommend approximately an hour per day, with an absolute minimum of 20 minutes.
Beyond the need to sleep or complete any other essential responsibilities, there is no maximum to the amount of time you could spend. The more you can commit each day, the faster your progress will be. Every additional minute helps.
Make sure you also have a large enough block of time sometime in the week to get some focused study done. That might be an hour on the weekend, for example.
How much time you can spend during the day is going to be the primary indicator of how achievable your goal is. If you think you can’t reach your desired goal given the time available, you need to either make time or adjust your goal’s timing.
