You'll need to "activate" the wallet
which simply means sending some XRP to it.
All XRP wallets require a reserve of 10XRP,
this helps prevent people making spam wallets.
You should consider sending at least 13XRP to activate your wallet.
Trustlines require a reserve of 2XRP.
This creates a placeholder for an XRPL token in your wallet.
Use xrptoolkit to add a trustline into any wallet. xrptoolkit
Go to "Accounts>Assets>Custom Edit"
Use the issuing address
Use XME as the currency code.
To trade XME use the dex app on Xumm or Sologenic.