How do you pull yourself out of a nasty funk and find joy in life again?

For a little background I’m generally a happy person. I have a good job and my family is financially secure. Enough to where we have money to invest and have a little bit of fun with it. The problem doesn’t lie there, lately I’ve been lacking motivation. I’m typically an athletic and fit guy, I like to exercise, get outside and eat well. I haven’t been able to do it hardly at all this year, every time I try I fail. Add to that I’ve had a couple events in the last 2 months that have completely turned everything upside down for me. My 14 year old daughter threatened that she had a suicide plan and wasn’t afraid to do go through with it. Three weeks after that my mother in law was diagnosed with stage 4 cancer and passed away 4 days later. Shocking the entire family and creating a huge wave of grief. Now I can’t even bring myself to go outside and enjoy life anymore, I want to go mountain biking but I say I’m too tired and take a nap instead. I want to take the kayaks on the lake and go fishing but it’s too much work. I want to go out in the woods and hike and camp. But it’s like I’d rather sit inside and do nothing. Like what the heck? I want to be the healthy guy who finds joy in everything outside.

Sorry if it seems I’m rambling it’s just been a tough year. What are some tips and tricks? Thank you