New vocabs in English. I'm trying to learn new vocabularies in English, but when I need them in a conversation I forget them. So how would I remember new words?

endless Friendship Everyday in my life, my best friend was a part of it, we participated news, sweats, experiences everything. I though the day we will separate would never come. Until that day I moved to another country with my family, I kept connecting her, but day after day she forget even to say hello. I was a memory and maybe forgettable one.