I don't want to push you towards any specific practice, but I'd highly encourage you to find the time to do a full retreat that gets you away from your daily routine, computing devices and other distractions. The first retreat I did was almost 2 weeks and I felt palpable withdrawal symptoms until the end of the 4th day when I started to become more calm and able to focus on the meditation. Not everyone feels similar, but I'd recommend against anything one week or shorter because I feel it doesn't give you the time to get in the right headspace to experience the benefits of meditation.

Shorter retreats can be beneficial to experienced meditators who practice on a regular basis and can make the most of a quick, intense period of meditation. But for beginners, it's not enough time to shake you free of your life and let you truly focus.