Not verreally.

I try to keep things neat and clean in my room, but after a few days, my room gets messy again.

Particularly I can't discard card-board box whiches that used to contained electronic devices.

How do you usually keep your room clean usually?

PI particularly I can't discard (the) card-board box(es) which used to contained electronic devices.

(1) I find that "particularly" sounds more natural when used right before the verb/adjective/adverb, since it is, after all, an adverb.

(2) I should mention that "particularly" and "in particular", while similar, have different usages. "Particularly" is used only with verbs, adjectives or adverbs, while "in particular" is generally used with nouns. So, it is also possible that you meant to say: "In particular, I can't discard the cardboard boxes". When you use "particularly", you are referring to how much you can't discard the boxes, whereas when you use "in particular", you're saying that you can't discard the boxes specifically (as compared to other items).

(3) You can consider the addition of "the" if you're referring to the boxes in your room in particular. If you're referring to such boxes in general, then your original sentence is fine.
(4) "Cardboard" is generally not hyphenated.
(5) It seems more likely that you're referring to more than one cardboard box, so the plural ("boxes") would be more expected. Of course, if you were referring to only one box, then the singular would be correct.
(6) "Used to contained" is ungrammatical, because "used" already conveys the past tense.

Particularly I can't discard the card-board boxes which used to contained electronic devices.