(((garden gal))
When your joy and anticipation has returned best to restrain the long range planning, (says she who has anxiety)

(anxiety worry about the future)
Enjoy the moment, expand one friend at time, even if you have to call 10.
Recently like you, I started reaching out, and while it was great to get in touch with long lost contacts, it was hard to cancel when my energy dropped. For me I find that keeping an even schedule even if I feel 'good' reduces the extremes- you say crashes - I say flare-ups. For me the energy has its own pattern or cycle separte from moods.
And I am not a machine sometimes flare-ups just happen, and that is when friends at PC make the most difference.
take care,