Regardless of how much money I make, I spend it all just to get by.
It doesn't matter how much money I earn, I seem to use it all because it's expensive to live.
ーRegardless of how much money I make, I sped it all just to get by.
「どれだけお金をかせぐにもかかわらず、なんとか（生活を）やっていくだけで全て使ってしまう」
regardless of で「〜にもかかわらず」
to get by で「なんとかやっていく・切り抜ける」
ーIt doesn't matter how much money I earn, I seem to use it all because it's expensive to live.
「いくら稼ぐかに関係なく、生活費が高いので、全部使ってしまうようだ」
doesn't matter で「関係ない」
expensive で「費用のかかる・高い」
to live で「生活する」
ご参考まで！
カナダ 
