Thoughts and second thoughts about new job

I went in for a few shifts for this new waitressing job. I didn't think I did too badly, and I texted my manager a few nights back if I needed to come in again this week. He never replied. So I got anxious and msged him again, and this time he responded within a minute. He told me to come in for full shifts this saturday and sunday. Whilst I was at first really happy I got called back in ( I worried he didn't want me ) , I am now wondering if he really wanted me to come in. If he did, surely he would have texted me back the first time? And I worry things won't go okay this weekend. There is another girl who works there who is super nice and she makes the shift go by so much easier. But I know she has days off, and I'm worried she won't be there this weekend and when I'm in trouble I'll have no one to ask.

I guess I need to be independent and stand on my own two feet.
I guess i'm just doing random worries about job. I always worry. I'm looking forward to getting paid though. ijust need this job until i start back in college. so just a month left. i hope i last

oh anxiety, how you rule me

He probably just meant to reply to the first text and forgot, or didn't notice it until the second one came. If he didn't want you to come in, he has no reason to tell you to.

If the other shifts were fine I'm sure this weekend will be too. Even if you make a few mistakes, so what? Someone gets their food late or you spill something. Not so bad.

He might have been busy or read the message and forgot to reply. Good luck with the shifts this weekend.

yeh, i guess no point in worrying about it. shift starting tomorrow. bit nervous. wondering what to do if i come across the rude supervisor again. the other waiting staff are mostly okay. some are impatient with me but at least theyre not rude. idk