First and most important tip: do not rush it! I would highly suggest letting this sit for at least 2 weeks before you even open the fermenter and think about bottling.
Even though your instructions probably tell you it will take 5-7 days to ferment, your yeast work at their own speed. Bottling early is bad for many reasons. First is that if it is not finished, it will continue to produce co2 in the capped bottle. With no exit port, the pressure will build in the bottle and it can explode. Second, new beer is bad beer. Beer takes time to condition and allow flavors the blend and mellow. As you're seeing, fermentation is messy. Yeast make some funky compounds and need time to break them down and for the beer to become good.
Only way to know when you can bottle is once fermentation is complete. Only way to know when that is is to measure the gravity with a hydrometer. Once it's the same a few days apart, you can bottle away. This may take 5 days, it may take 5 weeks.
Hardest thing to do on your first few beers is be patient enough with them. I promise it will be worth it! In the meantime, research new styles and buy some craft beer! Welcome to the obsession! Er...hobby