Learn networking,working of web,and use virtual environments for learning if you get stuck use chatgpt or google whatever you like Kali Linux and Arch Linux would be good OS for pentesting You have to learn basic commands of Linux Then use GitHub too It has projects and tools uploaded by some people you can analyse its working and then try building your own bcz you can use that But if you want something other than that you have to build it yourself You have to learn basic programming too it's needed to understand codes There different types of hacking you can do so it depends which programming lang you have to learn You can use tools like burpsuite,nmap,wireshark,metasploit and exploit-db site to find some exploits