I'm probably poorer than you so I can't be of any help except of advice.
Read up on the Colombian pro riders in the world tour like Nairo Quintana.
Colombia is a poor country. And Nairo was born poor. But he and his father are bike racing fans. He biked to school to save money in the high mountains of Colombia. So he had plenty of training just commuting back and forth to school and home.
Although his father saw racing potential in young Nairo, Nairo didn't started racing in his teens right away. He first worked as taxi driver for his dad and saved money to buy his first racing rig. Even so, Nairo didn't get the most expensive rig out there. He first started out racing for local clubs.
The fact is Nairo is older than you when he started racing for local clubs. He may even be poorer than you because Colombia is a poorer country than China.
If you really have potential, you'll be able to win even with inexpensive used bike or even still end up on the podium in the 3rd spot. Scouts for sponsors are not very particular if you ride the most expensive superbike out there. They will account for equipment. They're not after talents who have the most money but mainly for riders with the most raw potential.
Don't be impatient, you can start out older like Nairo Quintana. Wait until you can work and then work and save money for your racing rig or whatever else you need.
Also the average age of winning world tour pros are getting older. Meaning the top seeded talents are starting out older to begin their racing career.
It's really not impossible to become pro even if you are poor. Bikes are relatively inexpensive especially in the used market and training could be free. Local clubs and even club races can be free or really cheap. There's always talent scouts out there even in small local club races looking for potential. So it also helps to be nice and friendly to people. Don't be a jerk to pros when you catch them on the road training asking them for drugs and gels or shouting at them. It won't win you any favors.
I suppose all you can do now is just train. If you really have potential and smart with your training, you won't be wasting any time.