Tokyo YMCA language,How to Fulfill the 150-Hour Japanese Study Requirement for a Language School Application with Both Institute and Self-Study?

Hi everyone,
I'm applying to a Japanese language school in Japan, and they require proof of 150 hours of Japanese language study.

From February to July, I attended an offline institute where classes were held 1.5 hours each on Mondays and Wednesdays. This gives me around 80 hours of formal classroom study.

To complete the required 150 hours, I’ve also been doing self-study using books like Genki I, YouTube channels (Japan Hack, ShiroNeko, JapanesePod101), writing practice, and listening exercises.

I plan to submit a self-study log month-wise, detailing date, hours, activities, and resources used. I have given an interview already but i cleared i made a mistake while calculating

🔹 My questions are:

1. Has anyone here successfully submitted a mix of institute + self-study hours?
2. Will Japanese language schools accept this kind of detailed log as part of the 150-hour proof?
3. Any suggestions or templates that worked for you?
4. Should I get the institute to write a certificate stating the hours I attended?

Any help or experience is appreciated! Thanks in advance 🙏

Did anyone recenlty enrolled , is there other good other than YMCA where i can apply