There are various apps in the Google Play Store that will help you recover your lost data. You can try and experiment with several to see which one is better, but I will recommend app called DiskDigger, it’s fast and easy to use.

DiskDigger is an application that helps you in recovering deleted and lost pictures from your Android devices.

DiskDigger photo recovery app is very simple to use and works even without your device being rooted. It can undelete and recover lost pictures from your SD card and internal memory. Although if you have a rooted device, the app will search all of your device’s memory for any trace at all of photos as well as videos. If your device is not rooted, the app does a limited scan by searching your cache and thumbnails. So, in a way, you’re getting your pictures back.
You can upload your recovered files directly to Google Drive, Dropbox, or send them via email. The app also allows you to save the files to a different local folder on your device.

There are two version of DiskDigger (free and premium)version. The DiskDigger Pro version costs N596 to get. The advantage of the pro version is you can recover other files and not just photos.
I will provide a link for you here to download DiskDigger Pro version without paying a dine.



Download DiskDigger photo recovery free version from Play Store Here
Download DiskDigger Pro file recovery from this link

To use the app:

Open the DiskDigger app and tap “Start Basic Photo Scan“, the screen will be populated with a list of most recent deleted files.

When you see the photo you want to recover simply select it and hit “Recover…” button at the top.

The app will then ask you where you want to save the photo and after you pick its destination your photo should appear back in your memory card or phone system.

If your deleted photos were stored in your mobile phone's SD card, then you can try a Data Recovery to recover deleted photos from SD card.