Smart Contract - Giving me out of gas .. on test account


Hallo … I am newbie in DAPP … I created my first smart contract and having IOST account on testnet.
when I deploy my first IOST smart Contract I am getting out of gas error … from where I can get more gas… to fulfill requirement of RAM/ GAS on testnet

Error I am getting on IOST online IDE-
[12:22:25 PM] Error! Contract Choose Contract cant be deployed (balance not enough after executing actions: pay ram failed. id: marbolite need 2996, actual 500)

Any suggestions or link…
Thanks in advance