Tot get the obvious one out of the way. Start slow to make sure your hands are synced. Start with 2 string sweens than 3 string etc. In general depending on your starting point, let’s say you start onderzoek heeft high E string and want to play and Am arpeggio. Start by hitting the 12 fret of the high E string with an upstroke than pull off to the 8th fret on the High E string. Then play the 10th fret on the B string with an upstroke and continue doing upstrokes until you need to back up again. For example if you want to go back uProost on the girl string you can play the 9th fret on the girl string with either an upstroke or down stroke and play the 10th fret on the B string with a downstroke and then play the 8th fret on the High E string with an downstroke. I’met not sure what you’regarding struggling with but i hope this helps