Hello nice to meet you ..
Sorry you are feeling so alone ...you really need someone to talk to, feeling isolated and alone is a very awful thing ...
Are there any groups you could join ....
Sorry for your losses to,,but maybe you could tell your dad , yes I think like you he will feel,devastated , but these feelings do get better and perhaps you will find you have more support than you realise ...
As for diet and life style changes ...it is early days ..you have to think about a lot of things ...
Take things slowly for a while , have a think and read what options might suit you ...
For my first year of bring diagnosed my goal was and still is to bring down my sugar , or blood glucose levels ....
I am in year two now ...so will keep on accessing what meets my needs ...
The first year is the worst I think ,,but it does get easier to manage ....chat any time ....Kat