Ok ok so. I had interest in languages for few reasons and I'm starting to develop a new language from scratch, but I sometimes use phonetics and formulas from various languages. Is it okay to do that? And do you have tips on getting started? Also, I love your work! Thank you for the awesome languages you made!!
You don’t need to get permission from anyone to conlang in a certain way. Do whatever you enjoy! It’s useful to bear in mind a distinction we have in the conlanging communitiy: a priori vs. a posteriori. A priori languages are original in construction, with novel grammar and vocabulary, the best of the conlanger’s ability. A posteriori languages are not. Usually for a posteriori languages there’s a purpose to it. For example, Jan van Steenbergen’s Wenedyk is a Romance language with Polish sound changes applied to Latin. Why that? Because Jan thought it would be fun (he’s a big fan of Polish, and he enjoys contributing to the Ill Bethisad universe. Seemed like a good thing to do). After he made that decision, though, his use of Latin was quite specific and intentional. He did so methodically, because that was the nature of the experiment. In general, it’s a good idea to be methodical, and to have a good answer to the question “Why?” if anyone asks it. “Because I like it” is always a reason, but it’s a reason that others may not find compelling, if you care what others think.
Most conlangers go through a stage where they kind of “start with” a natural language and branch off. Some stop there, as well. It’s certainly possible. You also need not. It just depends what you want to do. Sometimes it helps to work through patterns found in natural languages to figure out what it is you like, and what it is you want to do with a language. Think of it like art students who go into museums and copy famous works. Doesn’t seem likely that they’ll sell any of those (or maybe they will?), but it helps them to figure out how those masters painted, and helps them figure out what they want to do with their own art.
But again, these are just thoughts. There’s no wrong way to conlang. If you’re enjoying it, you’re doing it right.