I don’t know my feel ,mistake

I don’t know my feel ,mistake 确认 You don't know my feel. I don't know anyone in my new class .I feel loney.what shall I feel stressed in my study from time to time.I don't know w i don't know how i feel的中文 I feel unhappy but i don't know why I don't know (find)my bike I feel so sorry for my mistake! I made a extremely big mistake,so i don't know what i ought I made a terrible mistake.I don't know what to do.who can te i don't know i can't feel i'm so lonely是什么意思 I don’t know I can’t feel I m so lonely 用汉语怎么说 ：急