독학으로 컴활 좀 따보려는데 It's difficult~

There must be quit a few people who have obtain this certification, but it's hard~

공부는 늘 집중하기가 어려워요.

신년에는 많이 뭘 좀 이뤘으면 좋겠어요😁

people 사람들 obtain얻다 certifification인증 증서