I lived in Lubbock for 5 years, while not El Paso, still West Texas. There was no “club” but I found some small tree people. These days it might be easier. Try searching FB groups and Craigslist. One way to meet people is to find folks selling plants and tools and pots online. Also ask around in the local nurseries, even if its a big box store plant people can’t help but to talk and share and ask questions. Odds are you will connect with somebody local and can plug into a few like minded people.
There is so much great advice on this thread. MIRAI library, the beginner and nursery stock series in particular will be a big help. One of the hardest things, new or old to bonsai is to do nothing. “Sometimes a tree needs to be a tree.” As much as we think about them don’t lose sight of that. They are not pets, although we care for them as if they were.
My last point. Observation is paramount in bonsai. observation of the weather, the sun in your yard, the wind (the real enemy), the color and shape of the foliage, the dryness or wetness of the soil, how that changes with temperature and time of year are all climate and horticulture related. Observation of the trees that live among you in the landscape, at the park, the campsite in the surrounding area will help guide you as to what will grow for you. Typically if it will grow in your yard it will grow in a pot. Shifting my thinking to local Texas natives and away from what I “liked” or saw in pictures was a big turning point for me. Observing the shrubs and plants that can become bonsai that thrive in your local climate will help flatten the learning curve.