I got bored of sit-up and push-up excercise soon and it doesn't last long.
The exercise of sit-up and push-up doesn't last long becuase I got tired of it soon.
素直にわかりやすく表現してみました。
I got bored of sit-up and push-up excercise soon and it doesn't last long.
腹筋や腕立て伏せはすぐに飽きてしまって、長く続かない。
The exercise of sit-up and push-up doesn't last long becuase I got tired of it soon.
腹筋や腕立て伏せは長く続かない、というのはすぐに飽きてしまうから。
get bored of~, get tired of~で飽きると表現しています。
exerciseは運動とわかりやすく示しています。
腹筋をする、腕立て伏せをするはdo push-ups, do sit-upsとなります。