I'm not talking about using a time machine to travel to the past. Instead, it's closer to waking up as your past self (your childhood) with memories from the present and inherited traits from when you're older (adult you), so you are in the body of when you're 10 years old but have thoughts inherited from when you're actually 35 years old, basically from the future.

You know events that'll happen, from positive to negative (that stems from your current memories) within the same time frame during your childhood, physically you appear as your past self when looking at the mirror, you also have the voice of a child even though your thoughts are basically mature as an adult (from your future self).

You are bound to the limits of the technology and resources available in the past, the only thing from the future are your thoughts. You don't have an iPhone in 1990 but inherit knowledge of a smartphone from the future (all will remain skeptical if you brought up the topic in the past) so it's best to lay a low profile not being deemed insane.

Even if this version of time travel happened to you: what it would be like? You could prevent "bad" things from occurring as you know the outcome, but keep in mind your past self is a kid meaning your approach has to be adjusted to fit the role of a kid whilst having adult thoughts without drawing in suspicion from others.