I like the way Denis exlained it. The only thing I'd like to add is провёл is the past form of провести(not проводить). But the case after it is the same as after проводить.

Примерно то же, что "кстати".

I've noticed habit/routine/discipline work even better than motivation. It's important to have your homework time planned as well as your lessons time.

Which one makes the phrase "bo__le of wa__er" impossible to make out?)))

Good luck with this serious resolution!

There are a few situations when we opt for the short form. One of them is when the adjective is describing smth that happens under certain conditions. Or temporarily. Every time I ask my friend out I see that -> он лёгок на подъём. Also: она легка на подъём, они легки на подъём. Она откровенна (when I talk to her and ask her opinion). Иногда я так голоден, что готов съесть слона (from time to time). But also if you see it as a permanent feature, you could say: он лёгкий на подъём (even at night). So there's some duality and subjectivity here.

Yezdan, here are a few tips for the up-and-coming teachers from Italki: https://support.italki.com/hc/en-us/articles/206351698-How-do-I-find-new-students- Good luck with getting new students!