No longer receiving e-mails, cannot properly configure DKIM and SPF

Hello!

When I initially set things up, it looked like SPF and DKIM were working. I got e-mails just fine and they'd mostly get through where I wanted them to go when I sent them. I've constantly had the little notifications showing they weren't working. I figured since I could receive e-mails I wouldn't worry about it. But today I thought I'd try to fix it. I changed some DNS settings and I think I broke something. Now it says that MX stuff isn't configured, I don't get any e-mails, and I can't figure out how to get things working again. Any help would be great. I tried to e-mail the support team from another e-mail address but it was returned because it said that support@zohomail.com was not found.