There are so many clothes that I want now, so I decided to get a new part-time job to buy them all. I’ll have to work hard to balance it with my studies too.
There are so many clothes I want at the moment, so I’ve decided to get a new part-time job to buy them. I’ll need to work hard to balance it with my studies.
Tip: We say “at the moment” instead of “now” in written or formal English. Also, use “I’ve decided” (present perfect) when the decision is recent and still important now.