Always start with the melody when learning a new tune, whether you are a beginner or seasoned player. Pay attention to the fretting hand and picking hand fingerings. If the timing of a particular measure gives you trouble, use the focus feature to listen and practice it repeatedly, then play through the whole arrangement. This type of practice really plays off. Once you have the whole arrangement down, don't be satisfied with just one play through. Do it multiple times so you know you really have it down.
Check out some licks to challenge yourself and use the Tunefox tools to practice the lick thoroughly before trying to incorporate it into the overall arrangement. Use the focus feature and difficulty slider in the pop-up window to adjust the difficulty of an individual measure for whatever lick you start to work with.