I'm very sorry to hear of the unexpected loss of your Yoshi...
It's never easy to part with such a beloved little friend, especially when they leave us so young, you have my deepest sympathies.
Time will heal the pain from no longer having your little friend and the memories of the good times you had with Yoshi will give you comfort. I hope you and your boys will start to feel better soon.
Rest in peace, Yoshi. You were much loved and will be missed.