First 100 hours I flew 11 types - you should be fine, just think about what you're doing and do it in your own time.
One tip for aircraft with left & right tanks is to switch to whatever tank matches the half of your watch the minute hand is in (subject to contents, of course) - so from the hour to half past you're on the right and from half past back up to the hour you're on the left. You glance at your watch often enough to remind yourself. Works for me.
Then find a Piper Cub or similar, add another type to your logbook, do tailwheel differences, achieve something great and really smile.
