What should I do: taking gap year before transfer?

<p>Hi everyone,
I am an international student and currently studying in a community college. I am majoring in Biochemistry or Chemistry. I am trying to transfer by next fall for Fall 205 admission. Here’s my profile:
GPA: 3.69
Activities:
Scholarly Event Coordinator of Phi Theta Kappa Honor Society (Fall 2013-2014)
o Organize the membership induction night o Notable Contributions:
:black_small_square: Participation in Induction Night Organizing Committee
:black_small_square: Participation in volunteer services of PTK.
:black_small_square: Aiding the Chapter in achieving its first 3-star ranking since its foundation1</p>

<ul>
<li><p>Participatory Governance Committee of Orange Coast College – (2012-2013)
o Responsible for the implementation of the OCC Enrollment Management Plan to include Data
Review, Outreach and Recruitment, and Retention. o Notable Contributions:
:black_small_square: Recruited as goal more students to go to Orange Coast College Summer 2013.
:black_small_square: Have a voice as a representative for student body in the enrollment process of Orange Coast College.</p></li>
<li><p>President of Vietnamese Student Association (2013-2014) o Record meeting materials for the club
o Keep track of financial documents of the club.
o Assist other Board members in technical issues regarding software and online applications.
o Notable Contributions:
:black_small_square: Holding workshop/Jeopardy gameshow about Vietnamese culture & tradition
:black_small_square: Host, and executive for Vietnamese themed Benefit Concert & Fashion Show 2013
:black_small_square: Representing OCC in Tet Parade in Garden Grove City and Tet Festival at OC Fair 2014.
:black_small_square: Organizing for Vietnamese Student Association in Orange Coast College Valentine’
:black_small_square: Accumulated service hours: 117 hours.
:black_small_square: Accumulated Service hours: 160 hours.</p></li>
</ul>

<p>"1 Previously, Beta Mu Alpha Chapter in OCC has never been recognized on Phi Theta Kappa International’s 5-star ranking
Service Contributions:

  • Volunteer for Orange Coast College Back to school day
    Accumulated Service hours: 10 hours.
  • Volunteer in OCC Bikeways Club (Summer 2013)
    o Volunteer Coordinator for Costa Mesa City Concerts in The Park o Accumulated Service hour: 8 hours.</p>

<p>Total volunteer hours: more than 350 hours.</p>

<p>I am also volunterring in Hospital since April.</p>

<p>The GPA i listed above is the GPA I will be having when i transfer to colleges. By November, I will apply for UCI, UCSD, UCLA. By Feb, my GPA would be ( I will try hard) about 3.8, and I will try to go to UW.
1/ I wonder if I will be accepted to the school, and perhaps some scholarships. It is very important if I get some aids in funding my study.
2/ I was also thinking about taking a gap year after I have finished my school in CC, and go to travel do charities, and apply later for those schools as My GPA would be about 3.9 after the last semester.
3/ If I apply as chemistry major, once I get accepted by TAG program in UCI ( hopefully), can I change my major to biochem, and is it hard to do so?</p>

<p>Please let me know the best choice in my decision right now, I really appreciate your help! Thank you so much in advance!!</p>