This is really a terrible issue, I never faced any issue with blockchain since last 6 years. Please help with it. I can send my BTC, there showing "insufficient fund" although there have more than sufficient balance. Please help it's an urgent. My Blood pressure being so high please help as soon as possible.

Or help how to upload fund from blockchain to electrum or any trusted wallet with 12 phrase key of blockchain.com
write me step by step how to regain access of my balance.

I had read forums articles to regain access like this;
I have downloaded electrum from there official website. then selected "standard wallet" > "I already have a seed" > entered "12 phrase key of blockchain" > selected "BIP39" because my Blockchain DeFI Wallet started with "bc1" > created password" but still balance is still in the blockchain account and not being transferred from blockchain to electrum. I need help very badly. please