Use this guide to download Electrum wallet from https://electrum.org and verify the signature. Blockchain wallet make use of legacy addresses (Bitcoin addresses that start from 1). Open the electrum wallet after download, click on standard wallet, the click on 'I already have a seed', check the BIP39 box, click on next and selecy P2PKH (legacy) and click on next. Let the wallet sychronize with the blockchain, you should see your bitcoin.

I will advice you to be using segwit addresses, try to open a segwit wallet type for low transaction fee, and also an upgrade activation is coming soon which is taproot, you can also try to make use of it when the time comes, it will come with lower transaction fee too anytime you are making transaction unlike legacy addresses.