To get more CPU, you would need to stake some EOS for it, so make sure you have enough balance.
To stake EOS for CPU, go to bloks.io and login with your Wombat wallet. The flow is a bit different, depending on the device you’re using.
- Go to Wallet in the lower section of the screen
- Tap on Menu in the upper right corner
- Tap on Stake CPU/NET
- Click on the Wallet tab right under the search bar
- Click on Stake CPU/NET
Choose your stake. If you think you will only make one transaction per day, 0.1 EOS should be enough. If you plan to move funds a lot or work with dApps actively, consider a range between 1-3 EOS. Using the same process, you can always unstake EOS — be advised that it will be unlocked only after 72 hours waiting period.