Need help regarding safemoon Binance Smart Chain token creation

Hello, I wanted to make a BSC token that has tokenomics similar to Safemoon. So I copied the contract on the remix on the test net and deployed it.

What I cannot figure out is

1)How to burn 50% of the supply
2)Add a small LQ pool, maybe of like 0.1 BNB, and lock it for a period of time or Burn it.
3)Add a dev wallet and a marketing wallet
4)Reannounce Ownership after it is created so it is not tampered with.

Can anyone please help me out with this, I am having a hard time finding the answers that’s why I came here.