When my own Mum died, someone sent me this article. I have since shared it numerous times and I hope it can provide you some comfort, too.
64 Things I Wish Someone Had Told Me About Grief
I also admire the work of Dr Lucy Hone and often share this short video (~16 minutes).
New Zealand Government also has some really useful advice on all practical aspects of losing a loved one.
Holdmine is a great, secure online repository for saving your own information — everything from end of life wishes to the details about your insurances, where your Will is stored and all other aspects of modern life that need untangling when someone dies.
Support after suicide
Families bereaved by suicide experience complex overwhelming emotions, but support is available.