Without a Buddha to give you a customized teaching based on your personality and kammic past, your best option is to follow The Noble Eightfold Path as laid out in the suttas. I emphasize the suttas because we know or assume the Buddha was Enlightened, so we know he gave correct directions. When you learn from a modern teacher, they might be Enlightened or they might not. Most people don't have the wisdom to accurately tell who is and isn't Enlightened. So studying from the Buddha/suttas, is the most consistent choice.
The suttas are a series of instructions. You train and practice. Do the verbs. If the directions seem too abstract, go to a different sutta that has directions you understand. You can come back to the abstract sutta in a few months or a year and it might make more sense.
Sutta means thread and there is no one sutta that contains the entire directions. You get many threads and weave them together to form a tapestry.
My recommendation is to start with In the Buddha's Words by Bhikkhu Bodhi. It's an anthology and gives an overview. Then read the suttas directly yourself. There's no order you need to read them in. My suggestion is to start with the Middle Length Discourses, but start wherever you want. https://suttacentral.net/ has all the suttas available for free. When you're researching a specific topic you can use the search engine https://find.dhamma.gift/