Everyone has a different ability level and style
Some breeze through on self study while others need to do a course
You are best placed to know your level
One student asked about his PPL exams one Saturday morning. We gave him the study pack and he completed the lot plus exams after lunch
Then completed the Pvt Nav components the following weekend
And then the CPL theory exams with the same speed and ease
Got bored and gave it away soon after
It's how you handle the aircraft and use your knowledge that counts