Moms, I'm so tired of being sick... my throat just won't heal ??????? …

Moms, I'm so tired of being sick... my throat just won't heal ??????? What else can I do? I've done absolutely everything — I eat normally, drink 1.5 liters of water a day, have tea and so on, gargling... some kind of virus is lingering ? a scratchy/tickly feeling causes coughing, my throat is inflamed... I'm so exhausted and feel so bad, please help... I think I'll message my GP tomorrow, but they said I should be hospitalized and I can't and don't want to... I've been sick since the 14th and still am; before that I had a fever ? 37.5°C for 3 days, then coughing and chills — that all passed, but the throat and weakness remain.