I'll use the opportunity to list a few resources that people might find useful:

• The Language Construction Kit. It's written mostly for newbies starting out on this vice. Yes, vice, because conlanging is addictive (ask Tolkien).
• The Index Diachronica. It lists sound changes by family and sound, so if you're evolving your conlang from another, it gives you a good idea on what would feel natural.
• The International Phonetic Alphabet chart. You don't need to know the IPA to make your own conlang, but it's a great way to refer to the sounds that you might include in your conlang.
• This glossary of linguistic terms is a lot like the above, except for linguistic vocab in general.

And while I don't plan to be active on moderation duties in this community, for everyone here: don't be afraid to ask for my help on questions regarding phonology and evolution! I have a decent grasp on both matters, I did use them for my own conlangs, and I enjoy talking about this stuff.

Happy conlanging!