The video below shows you how to join "a" and "l". Notice that this writer's "l" looks malnourished (營養不良!): it doesn't have enough "meat" on its bones!
Please make your "l" fatter. Otherwise, it looks like a "t" without the cross bar near the top.
Notes:
F
Make sure your "f" is long at the top and bottom. If the bottom is too short, it will look like a "b".