I (29F) adopted my deceased friends baby. I'm questioning my decision.

So my friend died a few months ago due to complications of advanced stage cancer. She was very young (28 at the time of her death) when she discovered she was sick. Before she died, she received a terminal prognosis. She didn't have a lot of time to make funeral arrangements or do the sort of preparation that older people do before they pass away. I was her closest friend and she asked if I would be willing to adopt her baby and raise her. I was young when my parents died, and she knew what it was like to be a child who didn't have any family who could take you in. I knew she didn't have a lot of options, so I ultimately agreed.<br><br>I'm happy to have the baby, but it's a lot harder than I expected. I'm not really sure how to raise a baby on my own as a single parent. My job pays well but the added expense of raising a child is really tough and has forced me to make a lot of adjustments to my lifestyle. I'm constantly exhausted, and I'm worried I'm not giving her the best life. I'm not sure how to make friends as a single parent, and it's really lonely. I feel guilty even questioning my decision, I've seen so many stories of women who desperately want to have a baby and can't conceive, and here I am with a beautiful baby girl. I just don't know what to do.<br><br>&#x200B;<br><br>TLDR: I adopted my deceased friends baby and I'm questioning my decision.