First of all ignore the rules you learned and do what your thoughts says,just imagine the colors you want and try to make it. you can study the basics of lightroom from YouTube there are thousands of tutorials available there.
-Use the Adjustment Brush,gradients..to selectively edit specific areas of your photo. This can be useful for fine-tuning the exposure or color in a specific area of your image.
-Use the HSL (Hue, Saturation, and Luminance) panel to make precise color adjustments. You can adjust the hue, saturation, and luminance of individual colors in your photo, which can be especially useful for correcting color casts.
-Use the Tone Curve panel to fine-tune the tonal range of your photo. You can adjust the highlights, shadows, and midtones separately to achieve the desired contrast and tonal balance.
-Use the Clone and Heal tools to remove blemishes or other distractions from your photo. These tools can be especially useful for removing dust spots or small imperfections from your images.
-Use the Transform panel to correct perspective distortion and straighten crooked lines in your photo. This can be especially useful for architectural or landscape photos.
-Use the Dehaze slider to reduce or remove atmospheric haze from your photos. This can be useful for improving the clarity and detail in landscape or outdoor photos.
-Use the Details panel to fine-tune the sharpness and clarity of your photo. You can use the Sharpness and Clarity sliders to increase or decrease the level of detail in your image.
-Use the Split Toning panel to add a color cast to the highlights or shadows of your photo. This can be a creative way to add a unique look to your images.