If I wish to say I enjoy doing something, can I say alternatively that I bask myself in doing that thing? Is such usage of "bask in" legitimate?
No, you can't use "bask in" to say you enjoy doing something. "Bask in" has two specific uses:
- To bask in the sun and its warmth and light, and
- To bask in fame, glory, or the attention of another person.
"Bask" can't be used in other contexts. For example, you can't say "I bask in basketball." You can, however, say "I'm still basking in the glory from our state basketball championship."