How do I save my basil?

I'm very attached to it since my mom bought it for me. It was going great for a month until a few days ago when the heat and humidity went up...I cut the ones that died as you can probably see :( I'm obviously doing something wrong, am I overwatering it? Please help :(

I'm very attached to it since my mom bought it for me. It was going great for a month until a few days ago when the heat and humidity went up...I cut the ones that died as you can probably see :( I'm obviously doing something wrong, am I overwatering it? Please help :(