Hello and welcome,
You have been very fortunate to have been directed to this site- there is no better place yo find help and support and guidance.
You've already been given a link to some helpful information so I will leave that with you
Just know it is totally normal to feel overwhelmed , sad any number of feelings- but this site will really help.
Good luck- read around and ask questions- it takes a while for it all to sink in. Just know there are many many people who are type 2 diabetics and manage their condition mostly with diet- though exercise does help.
Let us know if you have any specific questions after you have read the information ion the link
Welcome and good luck.