my dads birthday is in 14 days and i havnt done a single thing to prepare for his birthday. i feel useless

hes told me so many times he doesnt want anything special, maybe a cake. im 16, a junior in high school and jobless (you can call me a slob its okay) i just dont have the energy to balance work, school and a chronically ill mom while my dad works almost all the time. its exhausting but im trying these “play games for money” apps (this one i use does actually work! its called eureka (not sponsored i pinky swear) and i made five bucks once and ofc never got energy for it again til recently) all i wanna do is get a few decorations, balloons, and a few gifts for him i mean hes turning 60 and i cant even get a little money to celebrate this milestone i mean he deserves is so freaking much and i just feel like a lazy good for nothing daughter. he does so much for me, he bought us tickets to see our fav comedian (john mulaney) last august and it was the beat night of my life, being there with my father and seeing the sunset (the venue was open roof it was perfect!) but im happier i got to enjoy it with my dad. i love him dearly and i just wanna do this one thing for him, i cant even do that.