My Emails (from my domain) is considering SPAM - Send help

hi!

I would be so so gratefull if someone could help me! I don't know what else to do, when i think i've already tried everything, go to search console, still going to SPAM. I'm not any kind of milloinaire but i'm almost willing to give my soul if someone could help me with this and the Outlook! Thanks in advance, 

Kind Regards, the little bussiner owner who just start know and i'm alrealy freaking out!

Mónica (SOS)