I know this will sound a little stupid but I'm just worried I did something wrong?

So I migrated from Windows when I bought my new laptop, it came with a endless distro. After some time using endless it started having too many errors and nothing worked anymore and I installed Ubuntu.

Ubuntu installed fine and all, but after installing some new programs for university classes it started to get really hot, so as the semester is over I thought on formatting it again, and people had said mint was even more friendly and light, so I'm trying it now.

The first installation I did, I think I got the timezones wrong? (yeah, I know it's dumb) and it got stuck into the installation process for "selecting time from network" while giving a lot of source ID not found while trying to remove it.

So I restarted the pc, rebooted the USB and tried installing it again, and while it did give some more source ID errors it finished installing.

So my noob question is, do I need to worry about the errors and re-download the iso again and repeat the process or is it normal to have some errors like that?