So, you intend to move from your current Wix website to a WordPress website hosted by GoDaddy.
The main challenge with GoDaddy hosting is that they don’t really support an easy way to use Let’s Encrypt unless you are using one of their VPS hosting products.
There are plenty of other web hosts that feature easy to use Let’s Encrypt integrations, if changing hosts is an option at this point.
If not, you could try something like this Let’s Encrypt + GoDaddy shared hosting tutorial: https://tryingtobeawesome.com/encryptdaddy/ , which should get an automaticlly renewing certificate for you.
If that doesn’t work out, things like https://zerossl.com exists which will allow you to manually get a certificate, but would require you to manually renew it every 60-89 days, which is a bit inconvenient - Let’s Encrypt is meant to be used in an automated way.
If you’re not comfortable doing this kind of thing on your own, then it may be worthwhile just buying a long-duration DV certificate from a commercial CA (like Namecheap or GoDaddy or SSLs.com).