I fly perfectly happily in solid IMC and have done for most of my flying career. There is nothing scary about it per se, but it does need planning and preparation in advance and throughout the flight. There's an old joke about flying in IMC " If you aren't busy you've missed something" and it's very true.
Issues that need some level of advance planning are things like icing risks cloud thickness and layering (learn about Skew-t diagrams like this one
skew-t
)
Be very wary of embedded CB and conditions when fog might form
Instrument flying is all about procedure and plan, prepare them, follow them and adapt them as you go minute by minute.