Asking client to pay me

I did a project for a client where I drastically reduced my prices for him. I also did some free work because I didn’t say that I was going to charge for the work he was asking me for. I said yes, I’ll do it.

This client wants to have another call about doing another bit of work and I want to go into it ready to say that I’m going to charge for it. I’m struggling to get my brain in that space.

The thoughts that are coming up for me are:
– It’s weird and awkward to talk about money
– I don’t know how to ask to be paid