Hi Sley, and welcome to WoodworkingTalk!
Don't get discouraged. I get similar attitude at some lumberyards. Usually they are courteous and friendly, but expect you to know what you want. They are there to sell wood, not give advice.
It would help a lot if we knew where you live. In the meantime, here are a few suggestions that have helped me:
* Find a local woodworking group or club. These are people who love woodworking and want to share with others. They can give you advice, and a member might be willing to go along when you go to a lumberyard (or recommend a better one!). A lot of wood gets shared among members, and the word gets out when trees are coming down. Many of the members are aging out and selling their tools and wood and more, and they want to see them go to people who will use them.
* Check out your local public library. Our library system has a huge number of books on woodworking and wood. I have read at least 60 books from our library system in the last few years, no kidding. Old books are almost as good - woodworking evolves slowly, but basic concepts have not changed much. I just looked at a 1923 book on joinery and woodworking joints that could have been written yesterday.
* YouTube "university" is another popular resource for learning about woodworking. There are so many great videos to learn from. Keep in mind that anyone can post a YouTube video, including people who make rookie safety mistakes on camera. Not everyone who posts a YouTube video is an expert, even if they claim otherwise. Most videos are very helpful.
* Subscribe to a woodworking magazine. There are several good ones. I subscribe to Woodsmith and I think it is good for beginners, but our club passes around a lot of other woodworking magazines, and I think any of them would be helpful.
* Don't fall for "Ted's Plans" or "Thousands of Plans" or "65000 plans!" - it is a scam to steal your money.
* Post photos of your shop in progress and some of your woodworking projects as you go. Don't be afraid to ask questions here.
Best wishes and good luck with your shop!