So one of the BIG reasons we are doing these course in weekly sessions is because consistency is fundamental.
I know that most of my students have the tendency to study a lot at first, and then take a break for a few days, and then study for a few hours one day, and then you get busy and stop.
I know that I suffered from this problem a lot in the past too...
So, the course is designed that you can work just a little bit everyday. Almost never more than 30 minutes per day. Sometimes more days require more practice, some days less.
Personally, when I am learning new languages I like to do a little bit in the morning and a little bit at night. It is just easier for me to keep a routine with me and I think it helps me with memorization.
But that is just me, your schedule is totally up to you...
The important thing is that you are being consistent and doing something everyday.
I promise, that after studying a little bit everyday for a few months, you will be amazed at the results.