One very obvious piece of advice is to make sure that the toy is clean.
Do any of you use your fleshlight regularly without sleeves? Take a hollow pen tube- from a ballpoint pen- or a sturdy straw and stick it in between the jar lip and the Fleshlight.
They all have similar features only that the Mini Lotus has a lotus node just after the insert.
Because you will penetrate this toy, it will require lubrication down a fair length of it.