please help-feel like im goin mad

hi im back in my local hospital again wit talk of a hickman line as it takes so long to get venous access. Im back on the amino and had magnesium tday as was quite poorly earlier. Now on iv tazocin too. They found another bacterial infection in my blood stream. Im strugglin at the mo as it seems i only ever get a wk or two at home between admissions is there anythin i can do to make my immune system stronger any advice welcome i am gettin kinda deprarate now and fed up! Thanks in advance for replys and sorry 4 the winge. Lv kitkat Xxx