Vor VFR daytime flight pick easy to find landmarks not too far away. Lakes, hilltops, highway crossing, railway stations, coastlines. Say every 15 NM. You can even adjust the route to pass easy to recognise places. This might be more than needed and more planning work with the waypoints and flight plan but you might learn it faster. As a second layer VORs are quite helpful. You can fly a little higher for better reception range if possible. And don't go if the weather is marginal or you could run out of daylight. Especially on the way back. Take enough fuel or plan fuel stops to not come under any pressure. You can learn this basic navigation without any fancy glass cockpit or moving map GPS.