Would appreciate advice words of encouragement from people with simailar experinces. I am scared of miscarriage

I am 7 weeks pregnant. And I can barely eat, eveything has a "smell" eveything tastes horrible. I stopped liking eveything I used to I don't feel like myself at all. I constatly have cramps and some light pink spotting every now and then, a day ago I went for a 30min walk and had brown discharge with a little blood. I am scared and terrified. I am also anemic (iron twice a day), prescription prenatal make me very sick and prescription vitamins D. But I barely take ANY because I can't stand the taste and makes me want to puke, I am eating very very little and feel extremely weak. I feel like a disaster and I am so fearful that my babies heartbeat would have stopped God forbid. Please don't judge me is my first and I am married and we want the baby. I am just not prepared I want to keep my baby safe I am just having a very hard time adjusting and the ongoing sickness is controlling my life. I am also 105 pounds and have a problem gaining weight. I am hopeless aren't I? 😞💔