Here are some tips to increase your Snapstreak you just need to follow all the given steps -

1. Send Photo Snaps of your friends

2. Send Video Snaps

3. Be Consistent

4. Troubleshoot Snapchat if isn't working

5. Request to restore lost Snapstreak

Also Read - https://onlinegeeks.net/how-to-solve-tap-to-load-problem-on-snapchat/