Never trust anyone who says you won something.
this would sound stupid if you have not joined anything yet you win? but if you literally joining some events then check those if you really won something.
this sounds like some service provider in cellular phone in which some scammers sending notice that you won something and needs your details.
Don't connect your wallet to the fake pancake swap or any other shady website.
always Save the site you tend to use , because this will also save your ass from scam or hack site.
Only use the contract address straight from the real website, yes, Never store your seed phrases in your phone. Turn off dapps, make sure you disconnect your wallet from pancake swap after you are done using it. Never sell or send coins that just show up in your wallet. Never trust airdrops, Never give out your seed phrases, even to family, just put it in your will incase you die. Never tell people what is in your wallet, you may become a person the hackers and scammers focus on. Never trust anyone online, including any of the advice I am giving you. Turn on transaction signing and password.
Thank you for all advices mate, this is really a big help .