It's practical to imitate ideas from other polyglots. I like the ideas from Luca Lampariello and Lydia Machova. Youtube channel Accents Way by Hadar has excellent pronunciation videos, and I suggest you watch her video about learning word vocabulary. https://www.youtube.com/watch?v=bd6iGLmUssQ&t=694s It's essential to learn the difference between passive and active vocabulary. Anki and Duolingo are great for adding a lot of words into passive vocabulary. The problem with passive vocabulary is that you will know the word if you see or hear it, but you will not be able to recall it when speaking. To learn vocabulary better, it's important to add a context. When you take notes, add the sentence where you encountered the word as an example, try to create a story (funny or personal is better), and then make your own sentence using that word. It's more natural to learn important new words when reading something interesting or important for you. In my opinion, listening comprehension is the most difficult skill. Watch interesting Youtube videos, listening to podcasts with transcriptions, and listening to music with the lyrics will help you. To improve writing, you can post a paragraph on Italki, and several people will correct your mistakes. Keeping a diary or journal will help improve writing skills. The most important tip from polyglots is to create a study system that works for you and to be consistent with it. General rule is 30 minutes a day to maintain and one hour a day to grow. No one will have perfect consistency and occasionally a student needs a day or two off. Will power is best earlier in the morning and decreases during the day; therefore, it's better for most people to study around breakfast. I suggest watching polyglot gathering conferences on YouTube so you can gain wisdom from other polyglots, and it's important to discover the polyglot philosophies that you like. People with different personalities learn differently. Keep studying.

I researched some grammar websites, and most of the explanations were confusing to me too. As a Spanish student, I can understand your confusion, and I want to simplify it for you. Either significa ambos/ambos o de cualquier. Neither significa ninguno o tampoco. This is the simplest explanation that I found with infographics. https://www.eslbuzz.com/the-difference-between-neither-and-either/ Either includes two options; neither excludes two options. Neither creates a negation and starts with the letter “N.” Neither means not one of the given options. Now I will attempt to explain could vs might. Most grammar websites throw too much information and not enough examples. Reverso context is best for showing examples. The verb could is more commonly used to indicate that something CAN happen. Might is used to indicate possible actions (small chance of happening). Might is the past tense of the verb may which adds more confusion to your question. I may/might go to Paul´s party on Friday (when most people say it they usually mean: I probably won't go). Could significa podía y podría. El problema es podría significa might en traducir también. Could está el verbo pasado de poder en inglés y está más común y importante. I think of might as the word quizás in Spanish. You can use might to make a request like podría, but I would more often use the verb may to ask for permission. May I go to the bathroom? May I help you find something? This website has a table in the middle of the page that I hope will help you. https://askanydifference.com/difference-between-could-and-might/

Hello Jorge. I'm studying Spanish on Italki, and I had a Colombian tutor named Jorge Quintero also.

Yes, watching tv news is a good idea because the headline provides new vocabulary and the video helps with understanding the story. I have watched news in Spanish, but watching the news will become depressing and limiting after a few weeks so you will want to explore other videos on YouTube about topics you like.

As an American I would automatically say the first choice.