If you want to develop an FPGA chip yourself, you will need :
1. Deep understanding of integrated circuit design
2. HDL knowledge
3. Verification Knowledge (like UVM, SVA/PSL)
4. A few hundred thousand dollars for the tool licences, then at least the same again for the nun-refundable ASIC masks (plus spare change for the inevitable re-spin/bug fixes)
5. Probably a million man hours to spend on development.
Basically, if you are asking this question on the public forum, then the likely answer is "NO".
If this is out of your reach, then you may want to buy one of the existing FPGA dev boards that can be bought for less than $100 to do your work on.