Proper hygiene is needed for this one. Not only to ones own personal body but also on how he deals making and brewing beers. Most commonly since everybody on the planet love beers. So you have to keep everything tidy before you start the experimentation. You also have to keep your hands clean while handling the supplies and all.
You have to sterilize the utensils that you will be using. Not only wash it with the use of the old method of cleaning. But also to sanitize all of them by soaking them in a hot water after you have washed them. With that, the microorganisms that have cleaved onto their surfaces will be killed.
Sure the recipe is only simple and you only used the simple ingredients. However, do not underestimate your power to mix the drinks. Who knows, some people, even the multi millionaire found it tasty and unique compare to the other drinks they tried. With this, you can automatically tweak your procedure or recipe to perfect the craft.
Being the beginner that you are, there is the need for you to master the basics before you jump into the more advanced process. You need to take heed into the fermentation, the beers, and the yeast. You should master the procedure for the basic brewing. And move on to advanced process after acing it.
With the fermentation and temperature control, you may have to use the hydrometer to monitor the fermentation. Do not use the airlock activity for it is not efficient for the monitoring purposes. Sure you can use that as a gauge but not the end all. There is the right tool for this and that shall be used.
Cliche has it, practice makes perfect. In this matter, you have to do the process again and again and improve what has to be improved after you tasted every kit. Better yet, you can asked a closed friend or a chum to taste the booze so to give you the necessary feedback for improvement of your craft.
In this procedure, you must be open to all the flaws and to all the mistakes. It might cost you a fortune but you will never learn if you do not commit mistakes first. You can record all your mistakes so that you will have a guide for the development of this craft of the brewing process.
And lastly, always use the right home brewing supplies. The cost of them will vary depending on the brand that you bought. You must ask the shop about the suggested materials that they can give you. They are the manufacturer after all, so that means, they know things better than you do.