"Relax" is a complicated verb because of its meanings.
re‧lax /rɪˈlæks/ ●●● S3 W3 AWL verb
1 REST [intransitive, transitive] to rest or do something that is enjoyable, especially after you have been working
I just want to sit down and relax.
What Robyn needed was a drink to relax her.
A hot bath should help to relax you.
2 BECOME CALM [intransitive, transitive] to become quiet and calm after you have >been upset or nervous, or to make someone do this
Once out of danger, he started to relax.
Relax! Everything’s fine.
From the verb "relax" we have 2 adjectives "relaxed" & "relaxing"
re‧laxed /rɪˈlækst/ ●●● S2 W3 adjective
1 feeling calm, comfortable, and not worried or annoyed
Gail was lying in the sun looking very relaxed and happy.
relaxed about I feel more relaxed about my career than I used to.
re‧lax‧ing /rɪˈlæksɪŋ/ ●●○ adjective
making you feel relaxed OPP stressful
a relaxing evening at home
So, If I say "I am relaxing in my room" (if we see relax as a verb in this case), then it means "I am taking a rest in my room" or "I am getting calm in my room".
And this is similar to "I am relaxed in my room" (if we see relaxed as an adjective in this case), it means "I am feeling calm in my room".
Are "I am relaxing" and "I am relaxed" the same depending on whether they are verbs or adjectives?