I live on my own, and went through 18 months of active treatment. I can understand your concern about being alone, it feels like it will be forever at first and can be very scary to have to deal with everything on your own. Most here will tell you that the first chemo treatment is the worst in terms of not knowing what to expect. You are over that hurdle! :)
Do you have someone taking you to your chemo treatments? My main concern was having a friend take me to chemo and bring me home again. Everything else I did for myself, surprisingly I could keep my household going on my own albeit not as pristine as I would like, but who cares. If I couldn't and needed help, that is ok also, no rules and no medals given out on this "journey", so do what is good for you and your health.
I was very scared when they mentioned the cumulative effects of chemo, and I had visions of myself not being able to keep doing things for myself, but I just took a day at a time. I got through, but had a backup plan and had a bedroom set up for a friend to stay overnight if needed. I didn't need it, but I also at times felt sorry for myself, because it was tough going.
Can I tell you, when you finish your treatment and look back you will amaze yourself at how strong you are. Jump on the forum anytime you need to vent, share or inform. Best wishes for your continuing treatment.