Lost my whole MFP account

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I had to recreate a new account I’ve lost all my friends and since I didn’t write down their user names I can’t add anyone back.
Also now I’m seeing a lot more calories burned showing than I use to and all my settings are the same
I use Fitbit for steps and MFP seems to show higher burned from steps than I used to
Today I biked in my basement on my bike trainer burned 518 calories in 71 minutes and with 4042 steps MGP says I’ve burned 949 calories
I’m confused
So if anyone can help me I’d really appreciate it.
I miss my friends Mightymouse something and abcgsh ?