Someone help me please!!!

Nicole
So me and my other half have been TTC exactly today for 4 months and we have been <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> doing the kits but it's not happening can somebody give me some answers to the questions I have please because I'm starting to get aggravated and wanting to give up and the fact that everyone around me is knocked up and having there kids isn't making it much better!!! 
1. After getting positive ovulation we had sex that day, someone said also have sex the next day or those next two days is that true? 
2. How many hours or days do you have once you see positive ovulation? 
3. Somebody just help me period lol 
4. How do you not get discouraged and stay positive!!