I think I'll be off for a while for various reasons.
I need to take a break from our studies for the next while because I have different things going on in my life.
この場合、次のような言い方ができます。
ーI think I'll be off for a while for various reasons.
「諸事情でしばらく休もうと思っています」
for various reasons で「諸事情で」
ーI need to take a break from our studies for the next while because I have different things going on in my life.
「いろいろ事情があって、しばらく勉強を休みます」
I have different things going on in my life ということでいろいろと事情があってと言えます。
ご参考まで！
カナダ 
