If you just want to muddle through the experience, if you just "fake" pseudo original and want to improve your ability, it is not enough to edit some words. You should look at the requirements of other companies for copywriting and editing. If you are not good at planning, you can learn some photoshop and dreamwear, or at least do your own web design. Man struggles upwards, first of all, he should do his job well and cheer together.